Attachment 371770 Details for Bug 198568 – Patch

[patch] Patch

bug-198568-20190610121304.patch (text/plain), 116.67 KB, created by youenn fablet on 2019-06-10 12:13:10 PDT

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Creator: youenn fablet

Created: 2019-06-10 12:13:10 PDT

Size: 116.67 KB

patch

obsolete

>Subversion Revision: 246050
>diff --git a/Source/WTF/ChangeLog b/Source/WTF/ChangeLog
>index 7147b2acbd991af9ba7ef96a064abdf3c1eb6181..f4fc99918f3a15de61d98a0bc535088278fef06f 100644
>--- a/Source/WTF/ChangeLog
>+++ b/Source/WTF/ChangeLog
>@@ -1,3 +1,13 @@
>+2019-06-05  Youenn Fablet  <youenn@apple.com>
>+
>+        Use NSURLSession for WebSocket
>+        https://bugs.webkit.org/show_bug.cgi?id=198568
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        * wtf/Platform.h:
>+        Introduce compile flag for WebSocket NSURLSession
>+
> 2019-06-03  Commit Queue  <commit-queue@webkit.org>
> 
>         Unreviewed, rolling out r246022.
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 039281ee2533fefddcd29123a7c63890a90868fd..c7d25843d4d7a71b487cf363c3d61e5c1319bfc2 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,28 @@
>+2019-06-05  Youenn Fablet  <youenn@apple.com>
>+
>+        Use NSURLSession for WebSocket
>+        https://bugs.webkit.org/show_bug.cgi?id=198568
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add a runtime flag to either choose the new WebSocket code path or the previously existing one.
>+        The switch is done at WebSocket channel API level which offers the necessary high level API to abstract the two code paths.
>+        By default, we continue using the current WebSocket implementation.
>+        Covered by manual testing on current WebSocket tests.
>+
>+        * Modules/websockets/ThreadableWebSocketChannel.cpp:
>+        (WebCore::ThreadableWebSocketChannel::create):
>+        * Modules/websockets/WebSocketChannel.cpp:
>+        (WebCore::WebSocketChannel::document):
>+        * Modules/websockets/WebSocketChannel.h:
>+        * WebCore.xcodeproj/project.pbxproj:
>+        * page/RuntimeEnabledFeatures.h:
>+        (WebCore::RuntimeEnabledFeatures::isNSURLSessionWebSocketEnabled const):
>+        (WebCore::RuntimeEnabledFeatures::setIsNSURLSessionWebSocketEnabled):
>+        * page/SocketProvider.cpp:
>+        (WebCore::SocketProvider::createWebSocketChannel):
>+        * page/SocketProvider.h:
>+
> 2019-06-03  Youenn Fablet  <youenn@apple.com>
> 
>         Allow resizing of camera video feeds to very small resolutions
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 4215d485aaf038b415ff629b6695889aaff43819..33dacccd08293babb72803a32900af1a927ea31d 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,118 @@
>+2019-06-05  Youenn Fablet  <youenn@apple.com>
>+
>+        Use NSURLSession for WebSocket
>+        https://bugs.webkit.org/show_bug.cgi?id=198568
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Implement socket channel provider on WebProcess level by sending IPC to NetworkProcess.
>+        On NetworkProcess side, use NSURLSession API to implement the WebSocket functionality. 
>+        This is a partial implementation:
>+        - inspector integration is not working.
>+        - some error cases are not well handled or are not producing the same error messages.
>+        - some features are not implemented (extensions, subprotocols, handshake authentication challenge, cookie handling...).
>+
>+        * CMakeLists.txt:
>+        * DerivedSources-input.xcfilelist:
>+        * DerivedSources-output.xcfilelist:
>+        * DerivedSources.make:
>+        * NetworkProcess/NetworkConnectionToWebProcess.cpp:
>+        (WebKit::NetworkConnectionToWebProcess::didReceiveMessage):
>+        (WebKit::NetworkConnectionToWebProcess::createSocketChannel):
>+        (WebKit::NetworkConnectionToWebProcess::removeSocketChannel):
>+        * NetworkProcess/NetworkConnectionToWebProcess.h:
>+        * NetworkProcess/NetworkConnectionToWebProcess.messages.in:
>+        * NetworkProcess/NetworkSession.cpp:
>+        (WebKit::NetworkSession::createWebSocketTask):
>+        * NetworkProcess/NetworkSession.h:
>+        (WebKit::NetworkSession::removeWebSocketTask):
>+        (WebKit::NetworkSession::addWebSocketTask):
>+        * NetworkProcess/NetworkSocketChannel.cpp: Added.
>+        (WebKit::NetworkSocketChannel::create):
>+        (WebKit::NetworkSocketChannel::NetworkSocketChannel):
>+        (WebKit::NetworkSocketChannel::~NetworkSocketChannel):
>+        (WebKit::NetworkSocketChannel::sendString):
>+        (WebKit::NetworkSocketChannel::sendData):
>+        (WebKit::NetworkSocketChannel::finishClosingIfPossible):
>+        (WebKit::NetworkSocketChannel::close):
>+        (WebKit::NetworkSocketChannel::didConnect):
>+        (WebKit::NetworkSocketChannel::didReceiveText):
>+        (WebKit::NetworkSocketChannel::didReceiveBinaryData):
>+        (WebKit::NetworkSocketChannel::didClose):
>+        (WebKit::NetworkSocketChannel::messageSenderConnection const):
>+        * NetworkProcess/NetworkSocketChannel.h: Added.
>+        * NetworkProcess/NetworkSocketChannel.messages.in: Added.
>+        * NetworkProcess/NetworkSocketStream.messages.in:
>+        * NetworkProcess/WebSocketTask.h: Added.
>+        (WebKit::WebSocketTask::sendString):
>+        (WebKit::WebSocketTask::sendData):
>+        (WebKit::WebSocketTask::close):
>+        (WebKit::WebSocketTask::cancel):
>+        (WebKit::WebSocketTask::resume):
>+        * NetworkProcess/cocoa/NetworkSessionCocoa.h:
>+        * NetworkProcess/cocoa/NetworkSessionCocoa.mm:
>+        (-[WKNetworkSessionDelegate existingWebSocketTask:]):
>+        (-[WKNetworkSessionDelegate URLSession:webSocketTask:didOpenWithProtocol:]):
>+        (-[WKNetworkSessionDelegate URLSession:webSocketTask:didCloseWithCode:reason:]):
>+        (WebKit::NetworkSessionCocoa::continueDidReceiveChallenge):
>+        (WebKit::NetworkSessionCocoa::createWebSocketTask):
>+        (WebKit::NetworkSessionCocoa::addWebSocketTask):
>+        (WebKit::NetworkSessionCocoa::removeWebSocketTask):
>+        (WebKit::NetworkSessionCocoa::webSocketDataTaskForIdentifier):
>+        * NetworkProcess/cocoa/WebSocketTaskCocoa.h: Added.
>+        * NetworkProcess/cocoa/WebSocketTaskCocoa.mm: Added.
>+        (WebKit::WebSocketTask::WebSocketTask):
>+        (WebKit::WebSocketTask::~WebSocketTask):
>+        (WebKit::WebSocketTask::readNextMessage):
>+        (WebKit::WebSocketTask::cancel):
>+        (WebKit::WebSocketTask::resume):
>+        (WebKit::WebSocketTask::didConnect):
>+        (WebKit::WebSocketTask::didClose):
>+        (WebKit::WebSocketTask::sendString):
>+        (WebKit::WebSocketTask::sendData):
>+        (WebKit::WebSocketTask::close):
>+        (WebKit::WebSocketTask::identifier const):
>+        * Shared/WebPreferences.yaml:
>+        * WebKit.xcodeproj/project.pbxproj:
>+        * WebProcess/Network/NetworkProcessConnection.cpp:
>+        (WebKit::NetworkProcessConnection::didReceiveMessage):
>+        * WebProcess/Network/WebSocketChannel.cpp: Added.
>+        (WebKit::WebSocketChannel::create):
>+        (WebKit::WebSocketChannel::WebSocketChannel):
>+        (WebKit::WebSocketChannel::~WebSocketChannel):
>+        (WebKit::WebSocketChannel::messageSenderConnection const):
>+        (WebKit::WebSocketChannel::messageSenderDestinationID const):
>+        (WebKit::WebSocketChannel::subprotocol):
>+        (WebKit::WebSocketChannel::extensions):
>+        (WebKit::WebSocketChannel::connect):
>+        (WebKit::WebSocketChannel::send):
>+        (WebKit::WebSocketChannel::bufferedAmount const):
>+        (WebKit::WebSocketChannel::close):
>+        (WebKit::WebSocketChannel::fail):
>+        (WebKit::WebSocketChannel::disconnect):
>+        (WebKit::WebSocketChannel::didConnect):
>+        (WebKit::WebSocketChannel::didReceiveText):
>+        (WebKit::WebSocketChannel::didReceiveBinaryData):
>+        (WebKit::WebSocketChannel::didClose):
>+        (WebKit::WebSocketChannel::didFail):
>+        (WebKit::WebSocketChannel::networkProcessCrashed):
>+        * WebProcess/Network/WebSocketChannel.h: Added.
>+        * WebProcess/Network/WebSocketChannel.messages.in: Added.
>+        * WebProcess/Network/WebSocketChannelManager.cpp: Added.
>+        (WebKit::WebSocketChannelManager::createWebSocketChannel):
>+        (WebKit::WebSocketChannelManager::networkProcessCrashed):
>+        (WebKit::WebSocketChannelManager::didReceiveMessage):
>+        * WebProcess/Network/WebSocketChannelManager.h: Added.
>+        * WebProcess/Network/WebSocketProvider.cpp:
>+        (WebKit::WebSocketProvider::createWebSocketChannel):
>+        * WebProcess/Network/WebSocketProvider.h:
>+        * WebProcess/Network/WebSocketStream.cpp:
>+        * WebProcess/Network/WebSocketStream.messages.in:
>+        * WebProcess/WebProcess.cpp:
>+        (WebKit::WebProcess::networkProcessConnectionClosed):
>+        * WebProcess/WebProcess.h:
>+        (WebKit::WebProcess::webSocketChannelManager):
>+
> 2019-06-03  Wenson Hsieh  <wenson_hsieh@apple.com>
> 
>         Implement an internal switch to turn idempotent text autosizing and viewport rules off
>diff --git a/Source/WTF/wtf/Platform.h b/Source/WTF/wtf/Platform.h
>index 332eb3e7a8c223d7c091b6eabfaa1d8a8bc24c8d..c5f0a6d2dd5499f3ce4d44201625eec23bc6698d 100644
>--- a/Source/WTF/wtf/Platform.h
>+++ b/Source/WTF/wtf/Platform.h
>@@ -1555,6 +1555,10 @@
> #define USE_REALPATH_FOR_DLOPEN_PREFLIGHT 1
> #endif
> 
>+#if (PLATFORM(MAC) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500) || (PLATFORM(IOS_FAMILY) && __IPHONE_OS_VERSION_MIN_REQUIRED >= 130000) || (PLATFORM(WATCHOS) && __WATCH_OS_VERSION_MIN_REQUIRED >= 60000) || (PLATFORM(APPLETV) && __TV_OS_VERSION_MIN_REQUIRED >= 130000)
>+#define HAVE_NSURLSESSION_WEBSOCKET 1
>+#endif
>+
> #if (PLATFORM(MAC) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500) || (PLATFORM(IOS) && __IPHONE_OS_VERSION_MIN_REQUIRED >= 130000) || (PLATFORM(WATCHOS) && __WATCH_OS_VERSION_MIN_REQUIRED >= 60000) || (PLATFORM(APPLETV) && __TV_OS_VERSION_MIN_REQUIRED >= 130000)
> #define HAVE_AVPLAYER_RESOURCE_CONSERVATION_LEVEL 1
> #endif
>diff --git a/Source/WebCore/Headers.cmake b/Source/WebCore/Headers.cmake
>index f46e1be6947c7311616fad65b5f788bcf6e1e8a1..b6c3a626849d42d145a520dd67520e1a68d89917 100644
>--- a/Source/WebCore/Headers.cmake
>+++ b/Source/WebCore/Headers.cmake
>@@ -149,6 +149,16 @@ set(WebCore_PRIVATE_FRAMEWORK_HEADERS
>     Modules/webdatabase/DatabaseTracker.h
>     Modules/webdatabase/OriginLock.h
> 
>+    Modules/websockets/ThreadableWebSocketChannel.h
>+    Modules/websockets/WebSocketChannel.h
>+    Modules/websockets/WebSocketChannelClient.h
>+    Modules/websockets/WebSocketDeflateFramer.h
>+    Modules/websockets/WebSocketDeflater.h
>+    Modules/websockets/WebSocketExtensionDispatcher.h
>+    Modules/websockets/WebSocketExtensionProcessor.h
>+    Modules/websockets/WebSocketFrame.h
>+    Modules/websockets/WebSocketHandshake.h
>+
>     accessibility/AXObjectCache.h
>     accessibility/AXTextStateChangeIntent.h
>     accessibility/AccessibilityListBox.h
>@@ -506,6 +516,7 @@ set(WebCore_PRIVATE_FRAMEWORK_HEADERS
>     fileapi/BlobPropertyBag.h
>     fileapi/File.h
>     fileapi/FileList.h
>+    fileapi/FileReaderLoaderClient.h
> 
>     history/BackForwardClient.h
>     history/BackForwardController.h
>diff --git a/Source/WebCore/Modules/websockets/ThreadableWebSocketChannel.cpp b/Source/WebCore/Modules/websockets/ThreadableWebSocketChannel.cpp
>index 8299bb9e6ac9d897b59b8068a6687f5da752b528..860e4ca3e7a6afcbce3d0bc3c77405fcd337d54c 100644
>--- a/Source/WebCore/Modules/websockets/ThreadableWebSocketChannel.cpp
>+++ b/Source/WebCore/Modules/websockets/ThreadableWebSocketChannel.cpp
>@@ -31,9 +31,14 @@
> #include "config.h"
> #include "ThreadableWebSocketChannel.h"
> 
>+#include "ContentRuleListResults.h"
> #include "Document.h"
>+#include "Page.h"
>+#include "RuntimeEnabledFeatures.h"
> #include "ScriptExecutionContext.h"
>+#include "SocketProvider.h"
> #include "ThreadableWebSocketChannelClientWrapper.h"
>+#include "UserContentProvider.h"
> #include "WebSocketChannel.h"
> #include "WebSocketChannelClient.h"
> #include "WorkerGlobalScope.h"
>@@ -51,7 +56,48 @@ Ref<ThreadableWebSocketChannel> ThreadableWebSocketChannel::create(ScriptExecuti
>         return WorkerThreadableWebSocketChannel::create(workerGlobalScope, client, makeString("webSocketChannelMode", runLoop.createUniqueId()), provider);
>     }
> 
>-    return WebSocketChannel::create(downcast<Document>(context), client, provider);
>+    auto& document = downcast<Document>(context);
>+
>+#if HAVE(NSURLSESSION_WEBSOCKET)
>+    if (RuntimeEnabledFeatures::sharedFeatures().isNSURLSessionWebSocketEnabled()) {
>+        if (auto channel = provider.createWebSocketChannel(document, client))
>+            return channel.releaseNonNull();
>+    }
>+#endif
>+    return WebSocketChannel::create(document, client, provider);
>+}
>+
>+Optional<ThreadableWebSocketChannel::ValidatedURL> ThreadableWebSocketChannel::validateURL(Document& document, const URL& requestedURL)
>+{
>+    ValidatedURL validatedURL { requestedURL, true };
>+#if ENABLE(CONTENT_EXTENSIONS)
>+    if (auto* page = document.page()) {
>+        if (auto* documentLoader = document.loader()) {
>+            auto results = page->userContentProvider().processContentRuleListsForLoad(validatedURL.url, ContentExtensions::ResourceType::Raw, *documentLoader);
>+            if (results.summary.blockedLoad)
>+                return { };
>+            if (results.summary.madeHTTPS) {
>+                ASSERT(validatedURL.url.protocolIs("ws"));
>+                validatedURL.url.setProtocol("wss");
>+            }
>+            validatedURL.areCookiesAllowed = !results.summary.blockedCookies;
>+        }
>+    }
>+#endif
>+    return validatedURL;
>+}
>+
>+Optional<ResourceRequest> ThreadableWebSocketChannel::webSocketConnectRequest(Document& document, const URL& url)
>+{
>+    auto validatedURL = validateURL(document, url);
>+    if (!validatedURL)
>+        return { };
>+
>+    ResourceRequest request { validatedURL->url };
>+    request.setHTTPUserAgent(document.userAgent(validatedURL->url));
>+    request.setDomainForCachePartition(document.domainForCachePartition());
>+    request.setAllowCookies(validatedURL->areCookiesAllowed);
>+    return request;
> }
> 
> } // namespace WebCore
>diff --git a/Source/WebCore/Modules/websockets/ThreadableWebSocketChannel.h b/Source/WebCore/Modules/websockets/ThreadableWebSocketChannel.h
>index a85dfd7744cd479ab123d332711ee8f23d101d63..d6a8377981526dd31163d97c7b7936d5b93400c1 100644
>--- a/Source/WebCore/Modules/websockets/ThreadableWebSocketChannel.h
>+++ b/Source/WebCore/Modules/websockets/ThreadableWebSocketChannel.h
>@@ -32,6 +32,7 @@
> 
> #include <wtf/Forward.h>
> #include <wtf/Noncopyable.h>
>+#include <wtf/URL.h>
> 
> namespace JSC {
> class ArrayBuffer;
>@@ -40,6 +41,8 @@ class ArrayBuffer;
> namespace WebCore {
> 
> class Blob;
>+class Document;
>+class ResourceRequest;
> class ScriptExecutionContext;
> class SocketProvider;
> class WebSocketChannelClient;
>@@ -57,7 +60,7 @@ public:
>         SendFail
>     };
> 
>-    virtual void connect(const URL&, const String& protocol) = 0;
>+    virtual bool connect(const URL&, const String& protocol) = 0;
>     virtual String subprotocol() = 0; // Will be available after didConnect() callback is invoked.
>     virtual String extensions() = 0; // Will be available after didConnect() callback is invoked.
>     virtual SendResult send(const String& message) = 0;
>@@ -79,6 +82,13 @@ protected:
>     virtual ~ThreadableWebSocketChannel() = default;
>     virtual void refThreadableWebSocketChannel() = 0;
>     virtual void derefThreadableWebSocketChannel() = 0;
>+
>+    struct ValidatedURL {
>+        URL url;
>+        bool areCookiesAllowed { true };
>+    };
>+    static Optional<ValidatedURL> validateURL(Document&, const URL&);
>+    WEBCORE_EXPORT static Optional<ResourceRequest> webSocketConnectRequest(Document&, const URL&);
> };
> 
> } // namespace WebCore
>diff --git a/Source/WebCore/Modules/websockets/WebSocket.cpp b/Source/WebCore/Modules/websockets/WebSocket.cpp
>index 2a035246b7f2bd27dd24bea0ea08adb9b7d7a613..a75419aa6bd94481a5b1d1c4cd8c1e96ab68e9f0 100644
>--- a/Source/WebCore/Modules/websockets/WebSocket.cpp
>+++ b/Source/WebCore/Modules/websockets/WebSocket.cpp
>@@ -311,7 +311,9 @@ ExceptionOr<void> WebSocket::connect(const String& url, const Vector<String>& pr
>     if (!protocols.isEmpty())
>         protocolString = joinStrings(protocols, subprotocolSeparator());
> 
>-    m_channel->connect(m_url, protocolString);
>+    if (!m_channel->connect(m_url, protocolString))
>+        didReceiveMessageError();
>+
>     m_pendingActivity = makePendingActivity(*this);
> 
>     return { };
>diff --git a/Source/WebCore/Modules/websockets/WebSocketChannel.cpp b/Source/WebCore/Modules/websockets/WebSocketChannel.cpp
>index b4ccc89c4fd2ae45c642e278cb548aa35456ac85..5c3fbfe5f88642b61043ca4a933e06808edd88f0 100644
>--- a/Source/WebCore/Modules/websockets/WebSocketChannel.cpp
>+++ b/Source/WebCore/Modules/websockets/WebSocketChannel.cpp
>@@ -81,46 +81,28 @@ WebSocketChannel::~WebSocketChannel()
>     LOG(Network, "WebSocketChannel %p dtor", this);
> }
> 
>-void WebSocketChannel::connect(const URL& requestedURL, const String& protocol)
>+bool WebSocketChannel::connect(const URL& requestedURL, const String& protocol)
> {
>     LOG(Network, "WebSocketChannel %p connect()", this);
> 
>-    URL url = requestedURL;
>-#if ENABLE(CONTENT_EXTENSIONS)
>-    if (auto* page = m_document->page()) {
>-        if (auto* documentLoader = m_document->loader()) {
>-            auto results = page->userContentProvider().processContentRuleListsForLoad(url, ContentExtensions::ResourceType::Raw, *documentLoader);
>-            if (results.summary.blockedLoad) {
>-                Ref<WebSocketChannel> protectedThis(*this);
>-                callOnMainThread([protectedThis = WTFMove(protectedThis)] {
>-                    if (protectedThis->m_client)
>-                        protectedThis->m_client->didReceiveMessageError();
>-                });
>-                return;
>-            }
>-            if (results.summary.madeHTTPS) {
>-                ASSERT(url.protocolIs("ws"));
>-                url.setProtocol("wss");
>-                if (m_client)
>-                    m_client->didUpgradeURL();
>-            }
>-            if (results.summary.blockedCookies)
>-                m_allowCookies = false;
>-        }
>-    }
>-#endif
>-    
>+    auto validatedURL = validateURL(*m_document, requestedURL);
>+    if (!validatedURL)
>+        return false;
>     ASSERT(!m_handle);
>     ASSERT(!m_suspended);
>-    
>+
>+    if (validatedURL->url != requestedURL && m_client)
>+        m_client->didUpgradeURL();
>+
>+    m_allowCookies = validatedURL->areCookiesAllowed;
>     String userAgent = m_document->userAgent(m_document->url());
>     String clientOrigin = m_document->securityOrigin().toString();
>-    m_handshake = std::make_unique<WebSocketHandshake>(url, protocol, userAgent, clientOrigin, m_allowCookies);
>+    m_handshake = std::make_unique<WebSocketHandshake>(validatedURL->url, protocol, userAgent, clientOrigin, m_allowCookies);
>     m_handshake->reset();
>     if (m_deflateFramer.canDeflate())
>         m_handshake->addExtensionProcessor(m_deflateFramer.createExtensionProcessor());
>     if (m_identifier)
>-        InspectorInstrumentation::didCreateWebSocket(m_document.get(), m_identifier, url);
>+        InspectorInstrumentation::didCreateWebSocket(m_document.get(), m_identifier, validatedURL->url);
> 
>     if (Frame* frame = m_document->frame()) {
>         ref();
>@@ -129,6 +111,12 @@ void WebSocketChannel::connect(const URL& requestedURL, const String& protocol)
>         String partition = m_document->domainForCachePartition();
>         m_handle = m_socketProvider->createSocketStreamHandle(m_handshake->url(), *this, sessionID, partition, frame->loader().networkingContext());
>     }
>+    return true;
>+}
>+
>+Document* WebSocketChannel::document()
>+{
>+    return m_document.get();
> }
> 
> String WebSocketChannel::subprotocol()
>diff --git a/Source/WebCore/Modules/websockets/WebSocketChannel.h b/Source/WebCore/Modules/websockets/WebSocketChannel.h
>index 49bab547da8a8d77d5be5e4573afcde794128fda..66d20e0e286f8db7099e2289e84185a748a0b0ac 100644
>--- a/Source/WebCore/Modules/websockets/WebSocketChannel.h
>+++ b/Source/WebCore/Modules/websockets/WebSocketChannel.h
>@@ -56,7 +56,7 @@ class SocketStreamHandle;
> class SocketStreamError;
> class WebSocketChannelClient;
> 
>-class WebSocketChannel : public RefCounted<WebSocketChannel>, public SocketStreamHandleClient, public ThreadableWebSocketChannel, public FileReaderLoaderClient
>+class WebSocketChannel final : public RefCounted<WebSocketChannel>, public SocketStreamHandleClient, public ThreadableWebSocketChannel, public FileReaderLoaderClient
> {
>     WTF_MAKE_FAST_ALLOCATED;
> public:
>@@ -68,19 +68,19 @@ public:
>     bool send(const char* data, int length);
> 
>     // ThreadableWebSocketChannel functions.
>-    void connect(const URL&, const String& protocol) override;
>-    String subprotocol() override;
>-    String extensions() override;
>-    ThreadableWebSocketChannel::SendResult send(const String& message) override;
>-    ThreadableWebSocketChannel::SendResult send(const JSC::ArrayBuffer&, unsigned byteOffset, unsigned byteLength) override;
>-    ThreadableWebSocketChannel::SendResult send(Blob&) override;
>-    unsigned bufferedAmount() const override;
>-    void close(int code, const String& reason) override; // Start closing handshake.
>-    void fail(const String& reason) override;
>-    void disconnect() override;
>-
>-    void suspend() override;
>-    void resume() override;
>+    bool connect(const URL&, const String& protocol) final;
>+    String subprotocol() final;
>+    String extensions() final;
>+    ThreadableWebSocketChannel::SendResult send(const String& message) final;
>+    ThreadableWebSocketChannel::SendResult send(const JSC::ArrayBuffer&, unsigned byteOffset, unsigned byteLength) final;
>+    ThreadableWebSocketChannel::SendResult send(Blob&) final;
>+    unsigned bufferedAmount() const final;
>+    void close(int code, const String& reason) final; // Start closing handshake.
>+    void fail(const String& reason) final;
>+    void disconnect() final;
>+
>+    void suspend() final;
>+    void resume() final;
> 
>     // SocketStreamHandleClient functions.
>     void didOpenSocketStream(SocketStreamHandle&) final;
>@@ -124,7 +124,7 @@ public:
>     using RefCounted<WebSocketChannel>::ref;
>     using RefCounted<WebSocketChannel>::deref;
> 
>-    Document* document() { return m_document.get(); }
>+    Document* document();
>     
> protected:
>     void refThreadableWebSocketChannel() override { ref(); }
>diff --git a/Source/WebCore/Modules/websockets/WorkerThreadableWebSocketChannel.cpp b/Source/WebCore/Modules/websockets/WorkerThreadableWebSocketChannel.cpp
>index 8421b1456997068fbcfa4c6d8050be8121e87d35..1f56ff8812dd64928c8c9ec5b255c641fea277ba 100644
>--- a/Source/WebCore/Modules/websockets/WorkerThreadableWebSocketChannel.cpp
>+++ b/Source/WebCore/Modules/websockets/WorkerThreadableWebSocketChannel.cpp
>@@ -63,10 +63,11 @@ WorkerThreadableWebSocketChannel::~WorkerThreadableWebSocketChannel()
>         m_bridge->disconnect();
> }
> 
>-void WorkerThreadableWebSocketChannel::connect(const URL& url, const String& protocol)
>+bool WorkerThreadableWebSocketChannel::connect(const URL& url, const String& protocol)
> {
>     if (m_bridge)
>         m_bridge->connect(url, protocol);
>+    return true;
> }
> 
> String WorkerThreadableWebSocketChannel::subprotocol()
>diff --git a/Source/WebCore/Modules/websockets/WorkerThreadableWebSocketChannel.h b/Source/WebCore/Modules/websockets/WorkerThreadableWebSocketChannel.h
>index 3895e44967507c5ee99cc22f43e721f291375ff8..57f9350351bdb4825990874478b239aaa9568c95 100644
>--- a/Source/WebCore/Modules/websockets/WorkerThreadableWebSocketChannel.h
>+++ b/Source/WebCore/Modules/websockets/WorkerThreadableWebSocketChannel.h
>@@ -45,7 +45,7 @@ class WorkerGlobalScope;
> class WorkerLoaderProxy;
> class WorkerRunLoop;
> 
>-class WorkerThreadableWebSocketChannel : public RefCounted<WorkerThreadableWebSocketChannel>, public ThreadableWebSocketChannel {
>+class WorkerThreadableWebSocketChannel final : public RefCounted<WorkerThreadableWebSocketChannel>, public ThreadableWebSocketChannel {
>     WTF_MAKE_FAST_ALLOCATED;
> public:
>     static Ref<ThreadableWebSocketChannel> create(WorkerGlobalScope& workerGlobalScope, WebSocketChannelClient& client, const String& taskMode, SocketProvider& provider)
>@@ -55,18 +55,18 @@ public:
>     virtual ~WorkerThreadableWebSocketChannel();
> 
>     // ThreadableWebSocketChannel functions.
>-    void connect(const URL&, const String& protocol) override;
>-    String subprotocol() override;
>-    String extensions() override;
>-    ThreadableWebSocketChannel::SendResult send(const String& message) override;
>-    ThreadableWebSocketChannel::SendResult send(const JSC::ArrayBuffer&, unsigned byteOffset, unsigned byteLength) override;
>-    ThreadableWebSocketChannel::SendResult send(Blob&) override;
>-    unsigned bufferedAmount() const override;
>-    void close(int code, const String& reason) override;
>-    void fail(const String& reason) override;
>-    void disconnect() override; // Will suppress didClose().
>-    void suspend() override;
>-    void resume() override;
>+    bool connect(const URL&, const String& protocol) final;
>+    String subprotocol() final;
>+    String extensions() final;
>+    ThreadableWebSocketChannel::SendResult send(const String& message) final;
>+    ThreadableWebSocketChannel::SendResult send(const JSC::ArrayBuffer&, unsigned byteOffset, unsigned byteLength) final;
>+    ThreadableWebSocketChannel::SendResult send(Blob&) final;
>+    unsigned bufferedAmount() const final;
>+    void close(int code, const String& reason) final;
>+    void fail(const String& reason) final;
>+    void disconnect() final; // Will suppress didClose().
>+    void suspend() final;
>+    void resume() final;
> 
>     // Generated by the bridge.  The Peer and its bridge should have identical
>     // lifetimes.
>diff --git a/Source/WebCore/WebCore.xcodeproj/project.pbxproj b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>index 8334a9fd89b3a27134d5bab1b35a39ea82281605..6cf283a1ebb70a25df59bde708c9fbbb82db87f6 100644
>--- a/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>+++ b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>@@ -2826,10 +2826,10 @@
> 		97AABD1E14FA09D5007457AE /* WebSocketChannel.h in Headers */ = {isa = PBXBuildFile; fileRef = 97AABD0314FA09D5007457AE /* WebSocketChannel.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		97AABD1F14FA09D5007457AE /* WebSocketChannelClient.h in Headers */ = {isa = PBXBuildFile; fileRef = 97AABD0414FA09D5007457AE /* WebSocketChannelClient.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		97AABD2114FA09D5007457AE /* WebSocketDeflater.h in Headers */ = {isa = PBXBuildFile; fileRef = 97AABD0614FA09D5007457AE /* WebSocketDeflater.h */; settings = {ATTRIBUTES = (Private, ); }; };
>-		97AABD2314FA09D5007457AE /* WebSocketExtensionDispatcher.h in Headers */ = {isa = PBXBuildFile; fileRef = 97AABD0814FA09D5007457AE /* WebSocketExtensionDispatcher.h */; };
>+		97AABD2314FA09D5007457AE /* WebSocketExtensionDispatcher.h in Headers */ = {isa = PBXBuildFile; fileRef = 97AABD0814FA09D5007457AE /* WebSocketExtensionDispatcher.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		97AABD2414FA09D5007457AE /* WebSocketExtensionProcessor.h in Headers */ = {isa = PBXBuildFile; fileRef = 97AABD0914FA09D5007457AE /* WebSocketExtensionProcessor.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		97AABD2514FA09D5007457AE /* WebSocketFrame.h in Headers */ = {isa = PBXBuildFile; fileRef = 97AABD0A14FA09D5007457AE /* WebSocketFrame.h */; settings = {ATTRIBUTES = (Private, ); }; };
>-		97AABD2714FA09D5007457AE /* WebSocketHandshake.h in Headers */ = {isa = PBXBuildFile; fileRef = 97AABD0C14FA09D5007457AE /* WebSocketHandshake.h */; };
>+		97AABD2714FA09D5007457AE /* WebSocketHandshake.h in Headers */ = {isa = PBXBuildFile; fileRef = 97AABD0C14FA09D5007457AE /* WebSocketHandshake.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		97AABD2D14FA09D5007457AE /* WorkerThreadableWebSocketChannel.h in Headers */ = {isa = PBXBuildFile; fileRef = 97AABD1214FA09D5007457AE /* WorkerThreadableWebSocketChannel.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		97B8FFD116AE7F960038388D /* CharacterReferenceParserInlines.h in Headers */ = {isa = PBXBuildFile; fileRef = 97B8FFCF16AE7F920038388D /* CharacterReferenceParserInlines.h */; };
> 		97BC69DD1505F076001B74AC /* ChangeVersionWrapper.h in Headers */ = {isa = PBXBuildFile; fileRef = 97BC69D91505F076001B74AC /* ChangeVersionWrapper.h */; };
>diff --git a/Source/WebCore/page/RuntimeEnabledFeatures.h b/Source/WebCore/page/RuntimeEnabledFeatures.h
>index 1b9ddaccb8cf3bcdafd70904688cfee466944599..d1aee6e5a7c85baf871e5cbd8788b48c670ec683 100644
>--- a/Source/WebCore/page/RuntimeEnabledFeatures.h
>+++ b/Source/WebCore/page/RuntimeEnabledFeatures.h
>@@ -365,6 +365,9 @@ public:
> 
>     WEBCORE_EXPORT static RuntimeEnabledFeatures& sharedFeatures();
> 
>+    bool isNSURLSessionWebSocketEnabled() const { return m_isNSURLSessionWebSocketEnabled; }
>+    void setIsNSURLSessionWebSocketEnabled(bool isEnabled) { m_isNSURLSessionWebSocketEnabled = isEnabled; }
>+
> private:
>     // Never instantiate.
>     RuntimeEnabledFeatures();
>@@ -550,6 +553,8 @@ private:
> 
>     bool m_linkPreloadResponsiveImagesEnabled { false };
> 
>+    bool m_isNSURLSessionWebSocketEnabled { false };
>+
>     friend class WTF::NeverDestroyed<RuntimeEnabledFeatures>;
> };
> 
>diff --git a/Source/WebCore/page/SocketProvider.cpp b/Source/WebCore/page/SocketProvider.cpp
>index 46af7f479819ab4e0de82334d6e040c2bf58ad38..803ac83155ff4df1becf75cd4710f6fbf7bbc32a 100644
>--- a/Source/WebCore/page/SocketProvider.cpp
>+++ b/Source/WebCore/page/SocketProvider.cpp
>@@ -27,6 +27,7 @@
> #include "SocketProvider.h"
> 
> #include "SocketStreamHandleImpl.h"
>+#include "ThreadableWebSocketChannel.h"
> 
> namespace WebCore {
>     
>@@ -34,5 +35,10 @@ Ref<SocketStreamHandle> SocketProvider::createSocketStreamHandle(const URL& url,
> {
>     return SocketStreamHandleImpl::create(url, client, sessionID, credentialPartition, { }, provider);
> }
>-    
>+
>+RefPtr<ThreadableWebSocketChannel> SocketProvider::createWebSocketChannel(Document&, WebSocketChannelClient&)
>+{
>+    return nullptr;
>+}
>+
> }
>diff --git a/Source/WebCore/page/SocketProvider.h b/Source/WebCore/page/SocketProvider.h
>index e016b4d2c0da7353c08b64e298c33009392ba4c2..5f56f150255ab9b3c86f9dbd1ecdb60685ccc9c7 100644
>--- a/Source/WebCore/page/SocketProvider.h
>+++ b/Source/WebCore/page/SocketProvider.h
>@@ -31,15 +31,21 @@
> 
> namespace WebCore {
> 
>+class ThreadableWebSocketChannel;
>+class ScriptExecutionContext;
> class StorageSessionProvider;
> class ScriptExecutionContext;
> class SocketStreamHandle;
> class SocketStreamHandleClient;
>+class WebSocketChannelClient;
> 
> class WEBCORE_EXPORT SocketProvider : public ThreadSafeRefCounted<SocketProvider> {
> public:
>     static Ref<SocketProvider> create() { return adoptRef(*new SocketProvider); }
>     virtual Ref<SocketStreamHandle> createSocketStreamHandle(const URL&, SocketStreamHandleClient&, PAL::SessionID, const String& credentialPartition, const StorageSessionProvider*);
>+
>+    virtual RefPtr<ThreadableWebSocketChannel> createWebSocketChannel(Document&, WebSocketChannelClient&);
>+
>     virtual ~SocketProvider() { };
> };
> 
>diff --git a/Source/WebKit/CMakeLists.txt b/Source/WebKit/CMakeLists.txt
>index b8e08c1fb42b17b46792fdbb96b81720121759f0..6f79c8647a612dc04a02aac823d7495844d4c921 100644
>--- a/Source/WebKit/CMakeLists.txt
>+++ b/Source/WebKit/CMakeLists.txt
>@@ -111,6 +111,7 @@ set(WebKit_MESSAGES_IN_FILES
>     NetworkProcess/NetworkContentRuleListManager.messages.in
>     NetworkProcess/NetworkProcess.messages.in
>     NetworkProcess/NetworkResourceLoader.messages.in
>+    NetworkProcess/NetworkSocketChannel.messages.in
>     NetworkProcess/NetworkSocketStream.messages.in
> 
>     NetworkProcess/ServiceWorker/ServiceWorkerFetchTask.messages.in
>@@ -176,6 +177,7 @@ set(WebKit_MESSAGES_IN_FILES
> 
>     WebProcess/Network/NetworkProcessConnection.messages.in
>     WebProcess/Network/WebResourceLoader.messages.in
>+    WebProcess/Network/WebSocketChannel.messages.in
>     WebProcess/Network/WebSocketStream.messages.in
> 
>     WebProcess/Notifications/WebNotificationManager.messages.in
>diff --git a/Source/WebKit/DerivedSources-input.xcfilelist b/Source/WebKit/DerivedSources-input.xcfilelist
>index e4f4b2ba345133e3dd0c951aad349a89d52f39c5..0fb8423b5cccf7d26339425cd7a73f4b2c0d2e89 100644
>--- a/Source/WebKit/DerivedSources-input.xcfilelist
>+++ b/Source/WebKit/DerivedSources-input.xcfilelist
>@@ -20,6 +20,7 @@ $(PROJECT_DIR)/NetworkProcess/NetworkConnectionToWebProcess.messages.in
> $(PROJECT_DIR)/NetworkProcess/NetworkContentRuleListManager.messages.in
> $(PROJECT_DIR)/NetworkProcess/NetworkProcess.messages.in
> $(PROJECT_DIR)/NetworkProcess/NetworkResourceLoader.messages.in
>+$(PROJECT_DIR)/NetworkProcess/NetworkSocketChannel.messages.in
> $(PROJECT_DIR)/NetworkProcess/NetworkSocketStream.messages.in
> $(PROJECT_DIR)/NetworkProcess/ServiceWorker/ServiceWorkerFetchTask.messages.in
> $(PROJECT_DIR)/NetworkProcess/ServiceWorker/WebSWServerConnection.messages.in
>@@ -95,6 +96,7 @@ $(PROJECT_DIR)/WebProcess/FullScreen/WebFullScreenManager.messages.in
> $(PROJECT_DIR)/WebProcess/Geolocation/WebGeolocationManager.messages.in
> $(PROJECT_DIR)/WebProcess/Network/NetworkProcessConnection.messages.in
> $(PROJECT_DIR)/WebProcess/Network/WebResourceLoader.messages.in
>+$(PROJECT_DIR)/WebProcess/Network/WebSocketChannel.messages.in
> $(PROJECT_DIR)/WebProcess/Network/WebSocketStream.messages.in
> $(PROJECT_DIR)/WebProcess/Network/webrtc/WebMDNSRegister.messages.in
> $(PROJECT_DIR)/WebProcess/Network/webrtc/WebRTCMonitor.messages.in
>diff --git a/Source/WebKit/DerivedSources-output.xcfilelist b/Source/WebKit/DerivedSources-output.xcfilelist
>index 426b8675df4b430b4f3cea6f8570e4a20c6b12b3..fe0a6c00402c5355405451491d4d8df74473c793 100644
>--- a/Source/WebKit/DerivedSources-output.xcfilelist
>+++ b/Source/WebKit/DerivedSources-output.xcfilelist
>@@ -48,6 +48,8 @@ $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/NetworkRTCSocketMessageReceiver.cpp
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/NetworkRTCSocketMessages.h
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/NetworkResourceLoaderMessageReceiver.cpp
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/NetworkResourceLoaderMessages.h
>+$(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/NetworkSocketChannelMessageReceiver.cpp
>+$(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/NetworkSocketChannelMessages.h
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/NetworkSocketStreamMessageReceiver.cpp
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/NetworkSocketStreamMessages.h
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/PlaybackSessionManagerMessageReceiver.cpp
>@@ -192,6 +194,8 @@ $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/WebSWServerConnectionMessageReceive
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/WebSWServerConnectionMessages.h
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/WebSWServerToContextConnectionMessageReceiver.cpp
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/WebSWServerToContextConnectionMessages.h
>+$(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/WebSocketChannelMessageReceiver.cpp
>+$(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/WebSocketChannelMessages.h
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/WebSocketStreamMessageReceiver.cpp
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/WebSocketStreamMessages.h
> $(BUILT_PRODUCTS_DIR)/DerivedSources/WebKit2/WebUserContentControllerMessageReceiver.cpp
>diff --git a/Source/WebKit/DerivedSources.make b/Source/WebKit/DerivedSources.make
>index c11b3f8ebeed42de041b3dd4c9d512afd4ed67b0..5393c5bd7f097945002f10322efce0531632c3ff 100644
>--- a/Source/WebKit/DerivedSources.make
>+++ b/Source/WebKit/DerivedSources.make
>@@ -116,6 +116,7 @@ MESSAGE_RECEIVERS = \
>     NetworkRTCProvider \
>     NetworkRTCSocket \
>     NetworkResourceLoader \
>+    NetworkSocketChannel \
>     NetworkSocketStream \
>     PlaybackSessionManager \
>     PlaybackSessionManagerProxy \
>@@ -182,6 +183,7 @@ MESSAGE_RECEIVERS = \
>     WebSWContextManagerConnection \
>     WebSWServerConnection \
>     WebSWServerToContextConnection \
>+    WebSocketChannel \
>     WebSocketStream \
>     WebUserContentController \
>     WebUserContentControllerProxy \
>diff --git a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.cpp b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.cpp
>index 92c8b7ae44fb3b774d6b0598c419c383feb0920e..560e6fd196d9e42651249c2dcf2d522c1e011c30 100644
>--- a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.cpp
>@@ -41,6 +41,8 @@
> #include "NetworkResourceLoader.h"
> #include "NetworkResourceLoaderMessages.h"
> #include "NetworkSession.h"
>+#include "NetworkSocketChannel.h"
>+#include "NetworkSocketChannelMessages.h"
> #include "NetworkSocketStream.h"
> #include "NetworkSocketStreamMessages.h"
> #include "PingLoad.h"
>@@ -157,6 +159,12 @@ void NetworkConnectionToWebProcess::didReceiveMessage(IPC::Connection& connectio
>         return;
>     }
> 
>+    if (decoder.messageReceiverName() == Messages::NetworkSocketChannel::messageReceiverName()) {
>+        if (auto* channel = m_networkSocketChannels.get(decoder.destinationID()))
>+            channel->didReceiveMessage(connection, decoder);
>+        return;
>+    }
>+
>     if (decoder.messageReceiverName() == Messages::NetworkProcess::messageReceiverName()) {
>         m_networkProcess->didReceiveNetworkProcessMessage(connection, decoder);
>         return;
>@@ -347,10 +355,17 @@ void NetworkConnectionToWebProcess::createSocketStream(URL&& url, PAL::SessionID
>     m_networkSocketStreams.set(identifier, NetworkSocketStream::create(m_networkProcess.get(), WTFMove(url), sessionID, cachePartition, identifier, m_connection, WTFMove(token)));
> }
> 
>-void NetworkConnectionToWebProcess::destroySocketStream(uint64_t identifier)
>+void NetworkConnectionToWebProcess::createSocketChannel(PAL::SessionID sessionID, const ResourceRequest& request, const String& protocol, uint64_t identifier)
>+{
>+    ASSERT(!m_networkSocketChannels.contains(identifier));
>+    if (auto channel = NetworkSocketChannel::create(*this, sessionID, request, protocol, identifier))
>+        m_networkSocketChannels.add(identifier, WTFMove(channel));
>+}
>+
>+void NetworkConnectionToWebProcess::removeSocketChannel(uint64_t identifier)
> {
>-    ASSERT(m_networkSocketStreams.get(identifier));
>-    m_networkSocketStreams.remove(identifier);
>+    ASSERT(m_networkSocketChannels.contains(identifier));
>+    m_networkSocketChannels.remove(identifier);
> }
> 
> void NetworkConnectionToWebProcess::cleanupForSuspension(Function<void()>&& completionHandler)
>diff --git a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.h b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.h
>index 06d57968828658e168c2c81f7281f1f960c804ba..74161ff296515ffef881559ebe72a131cdb5293e 100644
>--- a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.h
>+++ b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.h
>@@ -60,6 +60,7 @@ namespace WebKit {
> 
> class NetworkProcess;
> class NetworkResourceLoader;
>+class NetworkSocketChannel;
> class NetworkSocketStream;
> class WebIDBConnectionToClient;
> class WebSWServerConnection;
>@@ -149,6 +150,8 @@ public:
>     void webPageWasRemoved(PAL::SessionID, WebCore::PageIdentifier);
>     void webProcessSessionChanged(PAL::SessionID newSessionID, const Vector<WebCore::PageIdentifier>& pages);
> 
>+    void removeSocketChannel(uint64_t identifier);
>+
> private:
>     NetworkConnectionToWebProcess(NetworkProcess&, IPC::Connection::Identifier);
> 
>@@ -195,8 +198,9 @@ private:
>     void setCaptureExtraNetworkLoadMetricsEnabled(bool);
> 
>     void createSocketStream(URL&&, PAL::SessionID, String cachePartition, uint64_t);
>-    void destroySocketStream(uint64_t);
>-    
>+
>+    void createSocketChannel(PAL::SessionID, const WebCore::ResourceRequest&, const String& protocol, uint64_t identifier);
>+
>     void ensureLegacyPrivateBrowsingSession();
> 
> #if ENABLE(INDEXED_DATABASE)
>@@ -283,6 +287,7 @@ private:
>     Ref<NetworkProcess> m_networkProcess;
> 
>     HashMap<uint64_t, RefPtr<NetworkSocketStream>> m_networkSocketStreams;
>+    HashMap<uint64_t, std::unique_ptr<NetworkSocketChannel>> m_networkSocketChannels;
>     NetworkResourceLoadMap m_networkResourceLoaders;
>     HashMap<String, RefPtr<WebCore::BlobDataFileReference>> m_blobDataFileReferences;
>     Vector<ResourceNetworkActivityTracker> m_networkActivityTrackers;
>diff --git a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.messages.in b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.messages.in
>index 833e74fcf6003eb83ac1de2d8c6bfc0ff25b9fc3..22077eaddbe0e6dec0cbc62f5eeddfa40303cf67 100644
>--- a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.messages.in
>+++ b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.messages.in
>@@ -52,6 +52,7 @@ messages -> NetworkConnectionToWebProcess LegacyReceiver {
>     SetCaptureExtraNetworkLoadMetricsEnabled(bool enabled)
> 
>     CreateSocketStream(URL url, PAL::SessionID sessionID, String cachePartition, uint64_t identifier)
>+    CreateSocketChannel(PAL::SessionID sessionID, WebCore::ResourceRequest request, String protocol, uint64_t identifier)
> 
>     EnsureLegacyPrivateBrowsingSession()
> 
>diff --git a/Source/WebKit/NetworkProcess/NetworkSession.cpp b/Source/WebKit/NetworkProcess/NetworkSession.cpp
>index 1d0a8ab9ba750b371749a51bc2b45b26d101c5b6..3544fa4cc5f83e9744f4dff36415e2caa42a459e 100644
>--- a/Source/WebKit/NetworkProcess/NetworkSession.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkSession.cpp
>@@ -36,6 +36,8 @@
> #include "WebPageProxy.h"
> #include "WebPageProxyMessages.h"
> #include "WebProcessProxy.h"
>+#include "WebSocketTask.h"
>+#include <WebCore/AdClickAttribution.h>
> #include <WebCore/CookieJar.h>
> #include <WebCore/NetworkStorageSession.h>
> #include <WebCore/ResourceRequest.h>
>@@ -204,4 +206,9 @@ void NetworkSession::removeKeptAliveLoad(NetworkResourceLoader& loader)
>     m_keptAliveLoads.remove(loader);
> }
> 
>+std::unique_ptr<WebSocketTask> NetworkSession::createWebSocketTask(NetworkSocketChannel&, const WebCore::ResourceRequest&, const String& protocol)
>+{
>+    return nullptr;
>+}
>+
> } // namespace WebKit
>diff --git a/Source/WebKit/NetworkProcess/NetworkSession.h b/Source/WebKit/NetworkProcess/NetworkSession.h
>index 8ca7e3174414d7c8ee26d80c17c9a9d221658f72..f9d22ab0aeb8a7b8f1ff7a86c266f1d3d9ba74e9 100644
>--- a/Source/WebKit/NetworkProcess/NetworkSession.h
>+++ b/Source/WebKit/NetworkProcess/NetworkSession.h
>@@ -53,7 +53,9 @@ class NetworkDataTask;
> class NetworkProcess;
> class NetworkResourceLoader;
> class StorageManager;
>+class NetworkSocketChannel;
> class WebResourceLoadStatisticsStore;
>+class WebSocketTask;
> struct NetworkSessionCreationParameters;
> 
> enum class WebsiteDataType;
>@@ -101,6 +103,10 @@ public:
>     PrefetchCache& prefetchCache() { return m_prefetchCache; }
>     void clearPrefetchCache() { m_prefetchCache.clear(); }
> 
>+    virtual std::unique_ptr<WebSocketTask> createWebSocketTask(NetworkSocketChannel&, const WebCore::ResourceRequest&, const String& protocol);
>+    virtual void removeWebSocketTask(WebSocketTask&) { }
>+    virtual void addWebSocketTask(WebSocketTask&) { }
>+
> protected:
>     NetworkSession(NetworkProcess&, PAL::SessionID, const String& localStorageDirectory, SandboxExtension::Handle&);
> 
>diff --git a/Source/WebKit/NetworkProcess/NetworkSocketChannel.cpp b/Source/WebKit/NetworkProcess/NetworkSocketChannel.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..f780b75b70968af047bf06181e27ca0f66feda41
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/NetworkSocketChannel.cpp
>@@ -0,0 +1,125 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#include "config.h"
>+#include "NetworkSocketChannel.h"
>+
>+#include "DataReference.h"
>+#include "NetworkConnectionToWebProcess.h"
>+#include "NetworkProcess.h"
>+#include "NetworkSession.h"
>+#include "WebSocketChannelMessages.h"
>+#include "WebSocketTask.h"
>+
>+namespace WebKit {
>+using namespace WebCore;
>+
>+std::unique_ptr<NetworkSocketChannel> NetworkSocketChannel::create(NetworkConnectionToWebProcess& connection, PAL::SessionID sessionID, const ResourceRequest& request, const String& protocol, uint64_t identifier)
>+{
>+    auto result = std::make_unique<NetworkSocketChannel>(connection, connection.networkProcess().networkSession(sessionID), request, protocol, identifier);
>+    if (!result->m_socket) {
>+        result->didClose(0, "Cannot create a web socket task"_s);
>+        return nullptr;
>+    }
>+    return result;
>+}
>+
>+NetworkSocketChannel::NetworkSocketChannel(NetworkConnectionToWebProcess& connection, RefPtr<NetworkSession>&& session, const ResourceRequest& request, const String& protocol, uint64_t identifier)
>+    : m_connectionToWebProcess(connection)
>+    , m_identifier(identifier)
>+    , m_session(WTFMove(session))
>+{
>+    if (!m_session)
>+        return;
>+
>+    m_socket = m_session->createWebSocketTask(*this, request, protocol);
>+
>+    m_session->addWebSocketTask(*m_socket);
>+    m_socket->resume();
>+}
>+
>+NetworkSocketChannel::~NetworkSocketChannel()
>+{
>+    if (!m_socket)
>+        return;
>+
>+    m_socket->cancel();
>+    m_session->removeWebSocketTask(*m_socket);
>+}
>+
>+void NetworkSocketChannel::sendString(const String& message, CompletionHandler<void()>&& callback)
>+{
>+    m_socket->sendString(message, WTFMove(callback));
>+}
>+
>+void NetworkSocketChannel::sendData(const IPC::DataReference& data, CompletionHandler<void()>&& callback)
>+{
>+    m_socket->sendData(data, WTFMove(callback));
>+}
>+
>+void NetworkSocketChannel::finishClosingIfPossible()
>+{
>+    if (m_state == State::Open) {
>+        m_state = State::Closing;
>+        return;
>+    }
>+    ASSERT(m_state == State::Closing);
>+    m_state = State::Closed;
>+    m_connectionToWebProcess.removeSocketChannel(m_identifier);
>+}
>+
>+void NetworkSocketChannel::close(unsigned short code, const String& reason)
>+{
>+    m_socket->close(code, reason);
>+    finishClosingIfPossible();
>+}
>+
>+void NetworkSocketChannel::didConnect()
>+{
>+    send(Messages::WebSocketChannel::DidConnect { });
>+}
>+
>+void NetworkSocketChannel::didReceiveText(const String& text)
>+{
>+    send(Messages::WebSocketChannel::DidReceiveText { text });
>+}
>+
>+void NetworkSocketChannel::didReceiveBinaryData(const uint8_t* data, size_t length)
>+{
>+    send(Messages::WebSocketChannel::DidReceiveBinaryData { { data, length } });
>+}
>+
>+void NetworkSocketChannel::didClose(unsigned short code, const String& reason)
>+{
>+    send(Messages::WebSocketChannel::DidClose { code, reason });
>+    finishClosingIfPossible();
>+}
>+
>+IPC::Connection* NetworkSocketChannel::messageSenderConnection() const
>+{
>+    return &m_connectionToWebProcess.connection();
>+}
>+
>+} // namespace WebKit
>diff --git a/Source/WebKit/NetworkProcess/NetworkSocketChannel.h b/Source/WebKit/NetworkProcess/NetworkSocketChannel.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..f8c5fbd1b6f652d4b071a0936397eac61de36754
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/NetworkSocketChannel.h
>@@ -0,0 +1,85 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#include "MessageReceiver.h"
>+#include "MessageSender.h"
>+#include <pal/SessionID.h>
>+#include <wtf/CompletionHandler.h>
>+
>+namespace WebCore {
>+class ResourceRequest;
>+}
>+
>+namespace IPC {
>+class Connection;
>+class Decoder;
>+class DataReference;
>+}
>+
>+namespace WebKit {
>+
>+class WebSocketTask;
>+class NetworkConnectionToWebProcess;
>+class NetworkProcess;
>+class NetworkSession;
>+
>+class NetworkSocketChannel : public IPC::MessageSender, public IPC::MessageReceiver {
>+public:
>+    static std::unique_ptr<NetworkSocketChannel> create(NetworkConnectionToWebProcess&, PAL::SessionID, const WebCore::ResourceRequest&, const String& protocol, uint64_t identifier);
>+
>+    NetworkSocketChannel(NetworkConnectionToWebProcess&, RefPtr<NetworkSession>&&, const WebCore::ResourceRequest&, const String& protocol, uint64_t identifier);
>+    ~NetworkSocketChannel();
>+
>+    void didReceiveMessage(IPC::Connection&, IPC::Decoder&);
>+
>+    friend class WebSocketTask;
>+
>+private:
>+    void didConnect();
>+    void didReceiveText(const String&);
>+    void didReceiveBinaryData(const uint8_t* data, size_t length);
>+    void didClose(unsigned short code, const String& reason);
>+
>+    void sendString(const String&, CompletionHandler<void()>&&);
>+    void sendData(const IPC::DataReference&, CompletionHandler<void()>&&);
>+    void close(unsigned short code, const String& reason);
>+
>+    IPC::Connection* messageSenderConnection() const final;
>+    uint64_t messageSenderDestinationID() const final { return m_identifier; }
>+
>+    void finishClosingIfPossible();
>+
>+    NetworkConnectionToWebProcess& m_connectionToWebProcess;
>+    uint64_t m_identifier;
>+    RefPtr<NetworkSession> m_session;
>+    std::unique_ptr<WebSocketTask> m_socket;
>+
>+    enum class State { Open, Closing, Closed };
>+    State m_state { State::Open };
>+};
>+
>+} // namespace WebKit
>diff --git a/Source/WebKit/NetworkProcess/NetworkSocketChannel.messages.in b/Source/WebKit/NetworkProcess/NetworkSocketChannel.messages.in
>new file mode 100644
>index 0000000000000000000000000000000000000000..81a87a17fde756783ba19e0fe25f4fa7e40c2147
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/NetworkSocketChannel.messages.in
>@@ -0,0 +1,27 @@
>+# Copyright (C) 2019 Apple Inc. All rights reserved.
>+#
>+# Redistribution and use in source and binary forms, with or without
>+# modification, are permitted provided that the following conditions
>+# are met:
>+# 1.  Redistributions of source code must retain the above copyright
>+#     notice, this list of conditions and the following disclaimer.
>+# 2.  Redistributions in binary form must reproduce the above copyright
>+#     notice, this list of conditions and the following disclaimer in the
>+#     documentation and/or other materials provided with the distribution.
>+#
>+# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
>+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
>+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
>+# DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR
>+# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
>+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
>+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
>+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
>+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>+
>+messages -> NetworkSocketChannel {
>+    SendString(String message) -> () Async
>+    SendData(IPC::DataReference data) -> () Async
>+    Close(unsigned short code, String reason)
>+}
>diff --git a/Source/WebKit/NetworkProcess/WebSocketTask.h b/Source/WebKit/NetworkProcess/WebSocketTask.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..f2328e5a4b0093ca25adee83997c4cec5bf7d1e4
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/WebSocketTask.h
>@@ -0,0 +1,48 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#if PLATFORM(COCOA) && HAVE(NSURLSESSION_WEBSOCKET)
>+#include "WebSocketTaskCocoa.h"
>+#else
>+
>+namespace WebKit {
>+
>+class WebSocketTask {
>+public:
>+    typedef uint64_t TaskIdentifier;
>+
>+    void sendString(const String&, CompletionHandler<void()>&&) { }
>+    void sendData(const IPC::DataReference&, CompletionHandler<void()>&&) { }
>+    void close(unsigned short code, const String& reason) { }
>+
>+    void cancel() { }
>+    void resume() { }
>+};
>+
>+} // namespace WebKit
>+
>+#endif
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.h b/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.h
>index 2c31d878499bceca19112af3a61a6697b0a2292f..b2d752a4ad0ea9f65212e640ea5357572776edaf 100644
>--- a/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.h
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.h
>@@ -31,10 +31,12 @@ OBJC_CLASS NSURLSession;
> OBJC_CLASS NSURLSessionDownloadTask;
> OBJC_CLASS NSOperationQueue;
> OBJC_CLASS WKNetworkSessionDelegate;
>+OBJC_CLASS WKNetworkSessionWebSocketDelegate;
> 
> #include "DownloadID.h"
> #include "NetworkDataTaskCocoa.h"
> #include "NetworkSession.h"
>+#include "WebSocketTask.h"
> #include <WebCore/NetworkLoadMetrics.h>
> #include <wtf/HashMap.h>
> 
>@@ -62,6 +64,8 @@ public:
>     NetworkDataTaskCocoa* dataTaskForIdentifier(NetworkDataTaskCocoa::TaskIdentifier, WebCore::StoredCredentialsPolicy);
>     NSURLSessionDownloadTask* downloadTaskWithResumeData(NSData*);
> 
>+    WebSocketTask* webSocketDataTaskForIdentifier(WebSocketTask::TaskIdentifier);
>+
>     void addDownloadID(NetworkDataTaskCocoa::TaskIdentifier, DownloadID);
>     DownloadID downloadID(NetworkDataTaskCocoa::TaskIdentifier);
>     DownloadID takeDownloadID(NetworkDataTaskCocoa::TaskIdentifier);
>@@ -82,10 +86,19 @@ private:
>     bool shouldLogCookieInformation() const override { return m_shouldLogCookieInformation; }
>     Seconds loadThrottleLatency() const override { return m_loadThrottleLatency; }
> 
>+#if HAVE(NSURLSESSION_WEBSOCKET)
>+    std::unique_ptr<WebSocketTask> createWebSocketTask(NetworkSocketChannel&, const WebCore::ResourceRequest&, const String& protocol) final;
>+    void addWebSocketTask(WebSocketTask&) final;
>+    void removeWebSocketTask(WebSocketTask&) final;
>+#endif
>+
>     HashMap<NetworkDataTaskCocoa::TaskIdentifier, NetworkDataTaskCocoa*> m_dataTaskMapWithCredentials;
>     HashMap<NetworkDataTaskCocoa::TaskIdentifier, NetworkDataTaskCocoa*> m_dataTaskMapWithoutState;
>     HashMap<NetworkDataTaskCocoa::TaskIdentifier, NetworkDataTaskCocoa*> m_dataTaskMapEphemeralStatelessCookieless;
>     HashMap<NetworkDataTaskCocoa::TaskIdentifier, DownloadID> m_downloadMap;
>+#if HAVE(NSURLSESSION_WEBSOCKET)
>+    HashMap<NetworkDataTaskCocoa::TaskIdentifier, WebSocketTask*> m_webSocketDataTaskMap;
>+#endif
> 
>     RetainPtr<NSURLSession> m_sessionWithCredentialStorage;
>     RetainPtr<WKNetworkSessionDelegate> m_sessionWithCredentialStorageDelegate;
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.mm b/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.mm
>index 5de9e6745cf4ba62b5e428ea4504584c52bd8869..2b4ae21a14804454e23fb7f24521481d0d8b069a 100644
>--- a/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.mm
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.mm
>@@ -35,6 +35,7 @@
> #import "NetworkLoad.h"
> #import "NetworkProcess.h"
> #import "NetworkSessionCreationParameters.h"
>+#import "WebSocketTask.h"
> #import <Foundation/NSURLSession.h>
> #import <WebCore/Credential.h>
> #import <WebCore/FormDataStreamMac.h>
>@@ -323,7 +324,11 @@ static String stringForSSLCipher(SSLCipherSuite cipher)
> }
> #endif
> 
>-@interface WKNetworkSessionDelegate : NSObject <NSURLSessionDataDelegate> {
>+@interface WKNetworkSessionDelegate : NSObject <NSURLSessionDataDelegate
>+#if HAVE(NSURLSESSION_WEBSOCKET)
>+    , NSURLSessionWebSocketDelegate
>+#endif
>+> {
>     RefPtr<WebKit::NetworkSessionCocoa> _session;
>     bool _withCredentials;
> }
>@@ -807,6 +812,34 @@ - (void)URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)data
>     }
> }
> 
>+#if HAVE(NSURLSESSION_WEBSOCKET)
>+- (WebSocketTask*)existingWebSocketTask:(NSURLSessionWebSocketTask *)task
>+{
>+    if (!_session)
>+        return nullptr;
>+
>+    if (!task)
>+        return nullptr;
>+
>+    return _session->webSocketDataTaskForIdentifier(task.taskIdentifier);
>+}
>+
>+
>+- (void)URLSession:(NSURLSession *)session webSocketTask:(NSURLSessionWebSocketTask *)task didOpenWithProtocol:(NSString *) protocol
>+{
>+    if (auto* webSocketTask = [self existingWebSocketTask:task])
>+        webSocketTask->didConnect();
>+}
>+
>+- (void)URLSession:(NSURLSession *)session webSocketTask:(NSURLSessionWebSocketTask *)task didCloseWithCode:(NSURLSessionWebSocketCloseCode)closeCode reason:(NSData *)reason
>+{
>+    if (auto* webSocketTask = [self existingWebSocketTask:task]) {
>+        auto reason = adoptNS([[NSString alloc] initWithData:[task closeReason] encoding:NSUTF8StringEncoding]);
>+        webSocketTask->didClose(closeCode, reason.get());
>+    }
>+}
>+#endif
>+
> @end
> 
> namespace WebKit {
>@@ -1136,6 +1169,14 @@ bool NetworkSessionCocoa::allowsSpecificHTTPSCertificateForHost(const WebCore::A
> void NetworkSessionCocoa::continueDidReceiveChallenge(const WebCore::AuthenticationChallenge& challenge, NetworkDataTaskCocoa::TaskIdentifier taskIdentifier, NetworkDataTaskCocoa* networkDataTask, CompletionHandler<void(WebKit::AuthenticationChallengeDisposition, const WebCore::Credential&)>&& completionHandler)
> {
>     if (!networkDataTask) {
>+#if HAVE(NSURLSESSION_WEBSOCKET)
>+        if (auto* webSocketTask = webSocketDataTaskForIdentifier(taskIdentifier)) {
>+            // FIXME: Handle challenges for web socket.
>+            completionHandler(AuthenticationChallengeDisposition::PerformDefaultHandling, { });
>+            return;
>+        }
>+#endif
>+
>         auto downloadID = this->downloadID(taskIdentifier);
>         if (downloadID.downloadID()) {
>             if (auto* download = networkProcess().downloadManager().download(downloadID)) {
>@@ -1194,4 +1235,30 @@ DMFWebsitePolicyMonitor *NetworkSessionCocoa::deviceManagementPolicyMonitor()
> #endif
> }
> 
>+#if HAVE(NSURLSESSION_WEBSOCKET)
>+std::unique_ptr<WebSocketTask> NetworkSessionCocoa::createWebSocketTask(NetworkSocketChannel& channel, const WebCore::ResourceRequest& request, const String& protocol)
>+{
>+    // FIXME: Use protocol.
>+    RetainPtr<NSURLSessionWebSocketTask> task = [m_sessionWithCredentialStorage.get() webSocketTaskWithRequest: request.nsURLRequest(WebCore::HTTPBodyUpdatePolicy::DoNotUpdateHTTPBody)];
>+    return std::make_unique<WebSocketTask>(channel, WTFMove(task));
>+}
>+
>+void NetworkSessionCocoa::addWebSocketTask(WebSocketTask& task)
>+{
>+    ASSERT(!m_webSocketDataTaskMap.contains(task.identifier()));
>+    m_webSocketDataTaskMap.add(task.identifier(), &task);
>+}
>+
>+void NetworkSessionCocoa::removeWebSocketTask(WebSocketTask& task)
>+{
>+    ASSERT(m_webSocketDataTaskMap.contains(task.identifier()));
>+    m_webSocketDataTaskMap.remove(task.identifier());
>+}
>+
>+WebSocketTask* NetworkSessionCocoa::webSocketDataTaskForIdentifier(WebSocketTask::TaskIdentifier identifier)
>+{
>+    return m_webSocketDataTaskMap.get(identifier);
>+}
>+
>+#endif
> }
>diff --git a/Source/WebKit/NetworkProcess/cocoa/WebSocketTaskCocoa.h b/Source/WebKit/NetworkProcess/cocoa/WebSocketTaskCocoa.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..7da83b451c792a7e262b94394345dc100768b323
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/cocoa/WebSocketTaskCocoa.h
>@@ -0,0 +1,71 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#if HAVE(NSURLSESSION_WEBSOCKET)
>+
>+#include <wtf/RetainPtr.h>
>+#include <wtf/WeakPtr.h>
>+
>+OBJC_CLASS NSURLSessionWebSocketTask;
>+
>+namespace IPC {
>+class DataReference;
>+}
>+
>+namespace WebKit {
>+class NetworkSession;
>+class NetworkSocketChannel;
>+
>+class WebSocketTask : public CanMakeWeakPtr<WebSocketTask> {
>+public:
>+    WebSocketTask(NetworkSocketChannel&, RetainPtr<NSURLSessionWebSocketTask>&&);
>+    ~WebSocketTask();
>+
>+    void sendString(const String&, CompletionHandler<void()>&&);
>+    void sendData(const IPC::DataReference&, CompletionHandler<void()>&&);
>+    void close(unsigned short code, const String& reason);
>+
>+    void didConnect();
>+    void didClose(unsigned short code, const String& reason);
>+
>+    void cancel();
>+    void resume();
>+
>+    typedef uint64_t TaskIdentifier;
>+    TaskIdentifier identifier() const;
>+
>+private:
>+    void readNextMessage();
>+
>+    NetworkSocketChannel& m_channel;
>+    RetainPtr<NSURLSessionWebSocketTask> m_task;
>+    bool m_receivedDidClose { false };
>+};
>+
>+} // namespace WebKit
>+
>+#endif
>diff --git a/Source/WebKit/NetworkProcess/cocoa/WebSocketTaskCocoa.mm b/Source/WebKit/NetworkProcess/cocoa/WebSocketTaskCocoa.mm
>new file mode 100644
>index 0000000000000000000000000000000000000000..2094407987dd36c5236403dd561653200a94653f
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/cocoa/WebSocketTaskCocoa.mm
>@@ -0,0 +1,123 @@
>+/*
>+ * Copyright (C) 2016-2018 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#import "config.h"
>+#import "WebSocketTaskCocoa.h"
>+
>+#if HAVE(NSURLSESSION_WEBSOCKET)
>+
>+#import "DataReference.h"
>+#import "NetworkSocketChannel.h"
>+#import <Foundation/NSURLSession.h>
>+#import <wtf/BlockPtr.h>
>+
>+namespace WebKit {
>+
>+WebSocketTask::WebSocketTask(NetworkSocketChannel& channel, RetainPtr<NSURLSessionWebSocketTask>&& task)
>+    : m_channel(channel)
>+    , m_task(WTFMove(task))
>+{
>+    readNextMessage();
>+}
>+
>+WebSocketTask::~WebSocketTask()
>+{
>+}
>+
>+void WebSocketTask::readNextMessage()
>+{
>+    [m_task receiveMessageWithCompletionHandler: makeBlockPtr([this, weakThis = makeWeakPtr(this)](NSURLSessionWebSocketMessage* _Nullable message, NSError * _Nullable error) {
>+        if (!weakThis)
>+            return;
>+
>+        if (error || !message) {
>+            // FIXME: this is a workaround and we should instead expect a didClose call.
>+            didClose(1000, "Unknown error");
>+            return;
>+        }
>+        if (message.type == NSURLSessionWebSocketMessageTypeString)
>+            m_channel.didReceiveText(message.string);
>+        else
>+            m_channel.didReceiveBinaryData(static_cast<const uint8_t*>(message.data.bytes), message.data.length);
>+
>+        readNextMessage();
>+    }).get()];
>+}
>+
>+void WebSocketTask::cancel()
>+{
>+    [m_task cancel];
>+}
>+
>+void WebSocketTask::resume()
>+{
>+    [m_task resume];
>+}
>+
>+void WebSocketTask::didConnect()
>+{
>+    m_channel.didConnect();
>+}
>+
>+void WebSocketTask::didClose(unsigned short code, const String& reason)
>+{
>+    if (m_receivedDidClose)
>+        return;
>+
>+    m_receivedDidClose = true;
>+    m_channel.didClose(code, reason);
>+}
>+
>+void WebSocketTask::sendString(const String& text , CompletionHandler<void()>&& callback)
>+{
>+    auto message = adoptNS([[NSURLSessionWebSocketMessage alloc] initWithString: text]);
>+    [m_task sendMessage: message.get() completionHandler: makeBlockPtr([callback = WTFMove(callback)](NSError * _Nullable) mutable {
>+        callback();
>+    }).get()];
>+}
>+
>+void WebSocketTask::sendData(const IPC::DataReference& data, CompletionHandler<void()>&& callback)
>+{
>+    auto nsData = adoptNS([[NSData alloc] initWithBytes:data.data() length:data.size()]);
>+    auto message = adoptNS([[NSURLSessionWebSocketMessage alloc] initWithData: nsData.get()]);
>+    [m_task sendMessage: message.get() completionHandler: makeBlockPtr([callback = WTFMove(callback)](NSError * _Nullable) mutable {
>+        callback();
>+    }).get()];
>+}
>+
>+void WebSocketTask::close(unsigned short code, const String& reason)
>+{
>+    auto nsData = adoptNS([[NSData alloc] initWithBytes:reason.utf8().data() length:reason.sizeInBytes()]);
>+    [m_task cancelWithCloseCode: (NSURLSessionWebSocketCloseCode)code reason: nsData.get()];
>+}
>+
>+WebSocketTask::TaskIdentifier WebSocketTask::identifier() const
>+{
>+    return [m_task taskIdentifier];
>+}
>+
>+}
>+
>+#endif
>diff --git a/Source/WebKit/Shared/WebPreferences.yaml b/Source/WebKit/Shared/WebPreferences.yaml
>index e2e9fe605e33bb5ff4b260aa831425722e3a053a..16ddc4f8c9bd83176659266a184409fa686fd16f 100644
>--- a/Source/WebKit/Shared/WebPreferences.yaml
>+++ b/Source/WebKit/Shared/WebPreferences.yaml
>@@ -1703,6 +1703,14 @@ LinkPreloadResponsiveImagesEnabled:
>   webcoreBinding: RuntimeEnabledFeatures
>   category: experimental
> 
>+IsNSURLSessionWebSocketEnabled:
>+  type: bool
>+  defaultValue: false
>+  humanReadableName: "NSURLSession WebSocket"
>+  humanReadableDescription: "Use NSURLSession WebSocket API"
>+  category: internal
>+  webcoreBinding: RuntimeEnabledFeatures
>+
> # Deprecated
> 
> ICECandidateFilteringEnabled:
>diff --git a/Source/WebKit/Sources.txt b/Source/WebKit/Sources.txt
>index 75982f7268a9a6bd45936cd35471f21c43c3edfa..f082549d79514206037787c9e2fe8d5fe960dd8d 100644
>--- a/Source/WebKit/Sources.txt
>+++ b/Source/WebKit/Sources.txt
>@@ -39,6 +39,7 @@ NetworkProcess/NetworkResourceLoadMap.cpp
> NetworkProcess/NetworkResourceLoader.cpp
> NetworkProcess/NetworkSession.cpp
> NetworkProcess/NetworkSessionCreationParameters.cpp
>+NetworkProcess/NetworkSocketChannel.cpp
> NetworkProcess/NetworkSocketStream.cpp
> NetworkProcess/PingLoad.cpp
> NetworkProcess/PreconnectTask.cpp
>@@ -481,6 +482,8 @@ WebProcess/MediaStream/UserMediaPermissionRequestManager.cpp
> WebProcess/Network/NetworkProcessConnection.cpp
> WebProcess/Network/WebLoaderStrategy.cpp
> WebProcess/Network/WebResourceLoader.cpp
>+WebProcess/Network/WebSocketChannel.cpp
>+WebProcess/Network/WebSocketChannelManager.cpp
> WebProcess/Network/WebSocketProvider.cpp
> WebProcess/Network/WebSocketStream.cpp
> 
>diff --git a/Source/WebKit/WebKit.xcodeproj/project.pbxproj b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>index 56e0df09cdfbfd85278fa06ce07f8fe8d3c2b6e0..0c0968b17adb61ba164ab8951d57b43a88692774 100644
>--- a/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>+++ b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>@@ -777,6 +777,7 @@
> 		31BA924E148831260062EDB5 /* WebNotificationManagerMessages.h in Headers */ = {isa = PBXBuildFile; fileRef = 31BA9249148830810062EDB5 /* WebNotificationManagerMessages.h */; };
> 		31D5929F166E060000E6BF02 /* WebPlugInClient.h in Headers */ = {isa = PBXBuildFile; fileRef = 31D5929D166E060000E6BF02 /* WebPlugInClient.h */; };
> 		31D755C11D91B81500843BD1 /* WKTextChecker.h in Headers */ = {isa = PBXBuildFile; fileRef = 314888FF1D91B11D00377042 /* WKTextChecker.h */; settings = {ATTRIBUTES = (Private, ); }; };
>+		31F060E11654318500F3281C /* NetworkSocketChannelMessageReceiver.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 31F060DD1654317500F3281C /* NetworkSocketChannelMessageReceiver.cpp */; };
> 		330934471315B9220097A7BC /* WebCookieManagerMessageReceiver.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 330934431315B9220097A7BC /* WebCookieManagerMessageReceiver.cpp */; };
> 		330934481315B9220097A7BC /* WebCookieManagerMessages.h in Headers */ = {isa = PBXBuildFile; fileRef = 330934441315B9220097A7BC /* WebCookieManagerMessages.h */; };
> 		330934491315B9220097A7BC /* WebCookieManagerProxyMessageReceiver.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 330934451315B9220097A7BC /* WebCookieManagerProxyMessageReceiver.cpp */; };
>@@ -872,6 +873,7 @@
> 		4112EDE020E407A500BEA92A /* com.ftsafe.NPAPI-Core-Safe-SoftKeybaord.plugin.rfc1034identifier.sb in Copy Plug-in Sandbox Profiles */ = {isa = PBXBuildFile; fileRef = 4112EDD220E4077300BEA92A /* com.ftsafe.NPAPI-Core-Safe-SoftKeybaord.plugin.rfc1034identifier.sb */; };
> 		411A8DDB20DDD1AC0060D34F /* WKMockMediaDevice.h in Headers */ = {isa = PBXBuildFile; fileRef = 411A8DD920DDB6050060D34F /* WKMockMediaDevice.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		411B22641E371BA6004F7363 /* LibWebRTCNetwork.h in Headers */ = {isa = PBXBuildFile; fileRef = 411B22621E371244004F7363 /* LibWebRTCNetwork.h */; };
>+		41287D4E225D1ECB009A3E26 /* WebSocketTaskCocoa.mm in Sources */ = {isa = PBXBuildFile; fileRef = 41287D4B225C05C4009A3E26 /* WebSocketTaskCocoa.mm */; };
> 		413075AB1DE85F330039EC69 /* NetworkRTCSocket.h in Headers */ = {isa = PBXBuildFile; fileRef = 413075991DE84FB00039EC69 /* NetworkRTCSocket.h */; };
> 		413075AC1DE85F370039EC69 /* NetworkRTCMonitor.h in Headers */ = {isa = PBXBuildFile; fileRef = 4130759B1DE84FB00039EC69 /* NetworkRTCMonitor.h */; };
> 		413075AD1DE85F580039EC69 /* LibWebRTCSocket.h in Headers */ = {isa = PBXBuildFile; fileRef = 413075A01DE85EE70039EC69 /* LibWebRTCSocket.h */; };
>@@ -884,6 +886,9 @@
> 		414DD37A20BF49A5006959FB /* com.cisco.webex.plugin.gpc64.sb in Copy Plug-in Sandbox Profiles */ = {isa = PBXBuildFile; fileRef = 414DD37820BF43EA006959FB /* com.cisco.webex.plugin.gpc64.sb */; };
> 		414DEDD71F9EDDE50047C40D /* ServiceWorkerProcessProxy.h in Headers */ = {isa = PBXBuildFile; fileRef = 414DEDD51F9EDDDF0047C40D /* ServiceWorkerProcessProxy.h */; };
> 		4157E4B020E2ECDF00A6C0D7 /* com.google.o1dbrowserplugin.sb in Copy Plug-in Sandbox Profiles */ = {isa = PBXBuildFile; fileRef = 4157E4AF20E2EC9800A6C0D7 /* com.google.o1dbrowserplugin.sb */; };
>+		417915AF2256BB7500D6F97E /* WebSocketChannel.h in Headers */ = {isa = PBXBuildFile; fileRef = 417915AD2256BB7400D6F97E /* WebSocketChannel.h */; };
>+		417915B12256C0D600D6F97E /* WebSocketChannelManager.h in Headers */ = {isa = PBXBuildFile; fileRef = 417915B02256C0D600D6F97E /* WebSocketChannelManager.h */; };
>+		417915B92257046F00D6F97E /* NetworkSocketChannel.h in Headers */ = {isa = PBXBuildFile; fileRef = 417915B62257046E00D6F97E /* NetworkSocketChannel.h */; };
> 		41897ED11F415D680016FA42 /* WebCacheStorageConnection.h in Headers */ = {isa = PBXBuildFile; fileRef = 41897ECD1F415D5C0016FA42 /* WebCacheStorageConnection.h */; };
> 		41897ED81F415D8A0016FA42 /* CacheStorageEngine.h in Headers */ = {isa = PBXBuildFile; fileRef = 41897ED21F415D850016FA42 /* CacheStorageEngine.h */; };
> 		41897EDA1F415D8A0016FA42 /* CacheStorageEngineConnection.h in Headers */ = {isa = PBXBuildFile; fileRef = 41897ED41F415D850016FA42 /* CacheStorageEngineConnection.h */; };
>@@ -893,6 +898,7 @@
> 		41DC459C1E3DBB2800B11F51 /* LibWebRTCSocketClient.h in Headers */ = {isa = PBXBuildFile; fileRef = 41DC459A1E3DBB2400B11F51 /* LibWebRTCSocketClient.h */; };
> 		41DC459F1E3DBDA500B11F51 /* WebRTCSocket.h in Headers */ = {isa = PBXBuildFile; fileRef = 41FAF5F31E3BFE7F001AE678 /* WebRTCSocket.h */; };
> 		41DE7C6C22278F1E00532B65 /* ServiceWorkerFetchTask.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 41518536222704F6005430C6 /* ServiceWorkerFetchTask.cpp */; };
>+		41F060E11654318500F3281C /* WebSocketChannelMessageReceiver.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 41F060DD1654317500F3281C /* WebSocketChannelMessageReceiver.cpp */; };
> 		41FABD2A1F4DE001006A6C97 /* CacheStorageEngineCache.h in Headers */ = {isa = PBXBuildFile; fileRef = 41FABD281F4DDFDC006A6C97 /* CacheStorageEngineCache.h */; };
> 		41FAF5F51E3C0649001AE678 /* WebRTCResolver.h in Headers */ = {isa = PBXBuildFile; fileRef = 41FAF5F41E3C0641001AE678 /* WebRTCResolver.h */; };
> 		41FAF5F81E3C1021001AE678 /* LibWebRTCResolver.h in Headers */ = {isa = PBXBuildFile; fileRef = 41FAF5F61E3C0B47001AE678 /* LibWebRTCResolver.h */; };
>@@ -2931,6 +2937,7 @@
> 		31D5929D166E060000E6BF02 /* WebPlugInClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WebPlugInClient.h; sourceTree = "<group>"; };
> 		31EA25D0134F78B2005B1452 /* NativeWebMouseEventMac.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = NativeWebMouseEventMac.mm; sourceTree = "<group>"; };
> 		31EA25D3134F78D6005B1452 /* NativeWebMouseEvent.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NativeWebMouseEvent.h; sourceTree = "<group>"; };
>+		31F060DD1654317500F3281C /* NetworkSocketChannelMessageReceiver.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = NetworkSocketChannelMessageReceiver.cpp; path = DerivedSources/WebKit2/NetworkSocketChannelMessageReceiver.cpp; sourceTree = BUILT_PRODUCTS_DIR; };
> 		32DBCF5E0370ADEE00C91783 /* WebKit2Prefix.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WebKit2Prefix.h; sourceTree = "<group>"; };
> 		330934431315B9220097A7BC /* WebCookieManagerMessageReceiver.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = WebCookieManagerMessageReceiver.cpp; path = DerivedSources/WebKit2/WebCookieManagerMessageReceiver.cpp; sourceTree = BUILT_PRODUCTS_DIR; };
> 		330934441315B9220097A7BC /* WebCookieManagerMessages.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = WebCookieManagerMessages.h; path = DerivedSources/WebKit2/WebCookieManagerMessages.h; sourceTree = BUILT_PRODUCTS_DIR; };
>@@ -3071,6 +3078,9 @@
> 		411A8DD920DDB6050060D34F /* WKMockMediaDevice.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WKMockMediaDevice.h; sourceTree = "<group>"; };
> 		411A8DDA20DDB6050060D34F /* WKMockMediaDevice.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = WKMockMediaDevice.cpp; sourceTree = "<group>"; };
> 		411B22621E371244004F7363 /* LibWebRTCNetwork.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = LibWebRTCNetwork.h; path = Network/webrtc/LibWebRTCNetwork.h; sourceTree = "<group>"; };
>+		41287D4B225C05C4009A3E26 /* WebSocketTaskCocoa.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = WebSocketTaskCocoa.mm; sourceTree = "<group>"; };
>+		41287D4C225C05C5009A3E26 /* WebSocketTaskCocoa.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WebSocketTaskCocoa.h; sourceTree = "<group>"; };
>+		41287D4D225C161F009A3E26 /* WebSocketTask.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WebSocketTask.h; sourceTree = "<group>"; };
> 		413075981DE84FB00039EC69 /* NetworkRTCSocket.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = NetworkRTCSocket.cpp; sourceTree = "<group>"; };
> 		413075991DE84FB00039EC69 /* NetworkRTCSocket.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NetworkRTCSocket.h; sourceTree = "<group>"; };
> 		4130759A1DE84FB00039EC69 /* NetworkRTCMonitor.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = NetworkRTCMonitor.cpp; sourceTree = "<group>"; };
>@@ -3104,6 +3114,14 @@
> 		4151E5C31FBB90A900E47E2D /* FormDataReference.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = FormDataReference.h; sourceTree = "<group>"; };
> 		4157853021276B6F00DD3800 /* copy-webcontent-resources-to-private-headers.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = "copy-webcontent-resources-to-private-headers.sh"; sourceTree = "<group>"; };
> 		4157E4AF20E2EC9800A6C0D7 /* com.google.o1dbrowserplugin.sb */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = com.google.o1dbrowserplugin.sb; sourceTree = "<group>"; };
>+		417915AC2256BB7400D6F97E /* WebSocketChannel.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = WebSocketChannel.cpp; path = Network/WebSocketChannel.cpp; sourceTree = "<group>"; };
>+		417915AD2256BB7400D6F97E /* WebSocketChannel.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = WebSocketChannel.h; path = Network/WebSocketChannel.h; sourceTree = "<group>"; };
>+		417915B02256C0D600D6F97E /* WebSocketChannelManager.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = WebSocketChannelManager.h; path = Network/WebSocketChannelManager.h; sourceTree = "<group>"; };
>+		417915B22256C2E200D6F97E /* WebSocketChannelManager.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = WebSocketChannelManager.cpp; path = Network/WebSocketChannelManager.cpp; sourceTree = "<group>"; };
>+		417915B42256D1A700D6F97E /* WebSocketChannel.messages.in */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; name = WebSocketChannel.messages.in; path = Network/WebSocketChannel.messages.in; sourceTree = "<group>"; };
>+		417915B62257046E00D6F97E /* NetworkSocketChannel.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NetworkSocketChannel.h; sourceTree = "<group>"; };
>+		417915B72257046E00D6F97E /* NetworkSocketChannel.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = NetworkSocketChannel.cpp; sourceTree = "<group>"; };
>+		417915B82257046E00D6F97E /* NetworkSocketChannel.messages.in */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = NetworkSocketChannel.messages.in; sourceTree = "<group>"; };
> 		41897ECC1F415D5C0016FA42 /* WebCacheStorageProvider.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = WebCacheStorageProvider.cpp; sourceTree = "<group>"; };
> 		41897ECD1F415D5C0016FA42 /* WebCacheStorageConnection.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = WebCacheStorageConnection.h; sourceTree = "<group>"; };
> 		41897ECE1F415D5C0016FA42 /* WebCacheStorageConnection.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = WebCacheStorageConnection.cpp; sourceTree = "<group>"; };
>@@ -3132,6 +3150,7 @@
> 		41DC459A1E3DBB2400B11F51 /* LibWebRTCSocketClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = LibWebRTCSocketClient.h; sourceTree = "<group>"; };
> 		41DC459D1E3DBCF000B11F51 /* WebRTCSocket.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = WebRTCSocket.cpp; path = Network/webrtc/WebRTCSocket.cpp; sourceTree = "<group>"; };
> 		41DC45A01E3DC53C00B11F51 /* WebRTCResolver.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = WebRTCResolver.cpp; path = Network/webrtc/WebRTCResolver.cpp; sourceTree = "<group>"; };
>+		41F060DD1654317500F3281C /* WebSocketChannelMessageReceiver.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = WebSocketChannelMessageReceiver.cpp; path = DerivedSources/WebKit2/WebSocketChannelMessageReceiver.cpp; sourceTree = BUILT_PRODUCTS_DIR; };
> 		41FABD281F4DDFDC006A6C97 /* CacheStorageEngineCache.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CacheStorageEngineCache.h; sourceTree = "<group>"; };
> 		41FAF5F31E3BFE7F001AE678 /* WebRTCSocket.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = WebRTCSocket.h; path = Network/webrtc/WebRTCSocket.h; sourceTree = "<group>"; };
> 		41FAF5F41E3C0641001AE678 /* WebRTCResolver.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = WebRTCResolver.h; path = Network/webrtc/WebRTCResolver.h; sourceTree = "<group>"; };
>@@ -6571,6 +6590,11 @@
> 				510AFFB716542048001BA05E /* WebResourceLoader.cpp */,
> 				510AFFB816542048001BA05E /* WebResourceLoader.h */,
> 				510AFFCE16542CBD001BA05E /* WebResourceLoader.messages.in */,
>+				417915AC2256BB7400D6F97E /* WebSocketChannel.cpp */,
>+				417915AD2256BB7400D6F97E /* WebSocketChannel.h */,
>+				417915B42256D1A700D6F97E /* WebSocketChannel.messages.in */,
>+				417915B22256C2E200D6F97E /* WebSocketChannelManager.cpp */,
>+				417915B02256C0D600D6F97E /* WebSocketChannelManager.h */,
> 				5C7706731D111D8B0012700F /* WebSocketProvider.cpp */,
> 				5C7C88DC1D0F41A0009D2F6D /* WebSocketProvider.h */,
> 				5C0B177A1E7C884F00E9123C /* WebSocketStream.cpp */,
>@@ -6640,6 +6664,9 @@
> 				5C20CB9E1BB0DD1800895BB1 /* NetworkSession.h */,
> 				5C89DF5621AF61FF004645E8 /* NetworkSessionCreationParameters.cpp */,
> 				5C84CF901F96AC4E00B6705A /* NetworkSessionCreationParameters.h */,
>+				417915B72257046E00D6F97E /* NetworkSocketChannel.cpp */,
>+				417915B62257046E00D6F97E /* NetworkSocketChannel.h */,
>+				417915B82257046E00D6F97E /* NetworkSocketChannel.messages.in */,
> 				5C0B177D1E7C886700E9123C /* NetworkSocketStream.cpp */,
> 				5C0B177E1E7C886700E9123C /* NetworkSocketStream.h */,
> 				5C0B177F1E7C886700E9123C /* NetworkSocketStream.messages.in */,
>@@ -6649,6 +6676,7 @@
> 				83A0ED331F747CC7003299EB /* PreconnectTask.cpp */,
> 				83A0ED321F747CC6003299EB /* PreconnectTask.h */,
> 				E1B78470163F24690007B692 /* RemoteNetworkingContext.h */,
>+				41287D4D225C161F009A3E26 /* WebSocketTask.h */,
> 			);
> 			path = NetworkProcess;
> 			sourceTree = "<group>";
>@@ -7156,6 +7184,8 @@
> 				7EC4F0F918E4A945008056AF /* NetworkProcessCocoa.mm */,
> 				532159501DBAE6D70054AA3C /* NetworkSessionCocoa.h */,
> 				5C20CB9B1BB0DCD200895BB1 /* NetworkSessionCocoa.mm */,
>+				41287D4C225C05C5009A3E26 /* WebSocketTaskCocoa.h */,
>+				41287D4B225C05C4009A3E26 /* WebSocketTaskCocoa.mm */,
> 			);
> 			path = cocoa;
> 			sourceTree = "<group>";
>@@ -8614,6 +8644,7 @@
> 				51F060DD1654317500F3281E /* NetworkRTCMonitorMessageReceiver.cpp */,
> 				51F060DD1654317500F3282E /* NetworkRTCProviderMessageReceiver.cpp */,
> 				51F060DD1654317500F3281D /* NetworkRTCSocketMessageReceiver.cpp */,
>+				31F060DD1654317500F3281C /* NetworkSocketChannelMessageReceiver.cpp */,
> 				5C0B17741E7C879C00E9123C /* NetworkSocketStreamMessageReceiver.cpp */,
> 				5C0B17751E7C879C00E9123C /* NetworkSocketStreamMessages.h */,
> 				1A2D8437127F65D5001EB962 /* NPObjectMessageReceiverMessageReceiver.cpp */,
>@@ -8744,6 +8775,7 @@
> 				51F060DD1654317500F3281F /* WebRTCMonitorMessageReceiver.cpp */,
> 				51F060DD1654317500F3282C /* WebRTCResolverMessageReceiver.cpp */,
> 				51F060DD1654317500F3281C /* WebRTCSocketMessageReceiver.cpp */,
>+				41F060DD1654317500F3281C /* WebSocketChannelMessageReceiver.cpp */,
> 				5C0B17761E7C879C00E9123C /* WebSocketStreamMessageReceiver.cpp */,
> 				5C0B17771E7C879C00E9123C /* WebSocketStreamMessages.h */,
> 				517A530E1F47A84300DCDC0A /* WebSWClientConnectionMessageReceiver.cpp */,
>@@ -9398,6 +9430,7 @@
> 				413075AB1DE85F330039EC69 /* NetworkRTCSocket.h in Headers */,
> 				5C20CBA01BB1ECD800895BB1 /* NetworkSession.h in Headers */,
> 				532159551DBAE7290054AA3C /* NetworkSessionCocoa.h in Headers */,
>+				417915B92257046F00D6F97E /* NetworkSocketChannel.h in Headers */,
> 				31A2EC5614899C0900810D71 /* NotificationPermissionRequest.h in Headers */,
> 				3131261F148FF82C00BA2A39 /* NotificationPermissionRequestManager.h in Headers */,
> 				31A2EC521489981900810D71 /* NotificationPermissionRequestManagerProxy.h in Headers */,
>@@ -9787,6 +9820,8 @@
> 				F430E9422247335F005FE053 /* WebsiteMetaViewportPolicy.h in Headers */,
> 				0EDE85032004E75D00030560 /* WebsitePopUpPolicy.h in Headers */,
> 				71FB810B2260627E00323677 /* WebsiteSimulatedMouseEventsDispatchPolicy.h in Headers */,
>+				417915AF2256BB7500D6F97E /* WebSocketChannel.h in Headers */,
>+				417915B12256C0D600D6F97E /* WebSocketChannelManager.h in Headers */,
> 				C149380922347104000CD707 /* WebSpeechSynthesisClient.h in Headers */,
> 				836034A01ACB34D600626549 /* WebSQLiteDatabaseTracker.h in Headers */,
> 				1A52C0F81A38CDC70016160A /* WebStorageNamespaceProvider.h in Headers */,
>@@ -11028,6 +11063,7 @@
> 				51F060E11654318500F3281E /* NetworkRTCMonitorMessageReceiver.cpp in Sources */,
> 				51F060E11654318500F3282E /* NetworkRTCProviderMessageReceiver.cpp in Sources */,
> 				51F060E11654318500F3281D /* NetworkRTCSocketMessageReceiver.cpp in Sources */,
>+				31F060E11654318500F3281C /* NetworkSocketChannelMessageReceiver.cpp in Sources */,
> 				5C0B17781E7C880E00E9123C /* NetworkSocketStreamMessageReceiver.cpp in Sources */,
> 				2D92A790212B6AD400F493FD /* NPIdentifierData.cpp in Sources */,
> 				2D913446212CF9F000128AFD /* NPJSObject.cpp in Sources */,
>@@ -11313,7 +11349,9 @@
> 				51F060E11654318500F3281F /* WebRTCMonitorMessageReceiver.cpp in Sources */,
> 				51F060E11654318500F3282C /* WebRTCResolverMessageReceiver.cpp in Sources */,
> 				51F060E11654318500F3281C /* WebRTCSocketMessageReceiver.cpp in Sources */,
>+				41F060E11654318500F3281C /* WebSocketChannelMessageReceiver.cpp in Sources */,
> 				5C0B17791E7C882100E9123C /* WebSocketStreamMessageReceiver.cpp in Sources */,
>+				41287D4E225D1ECB009A3E26 /* WebSocketTaskCocoa.mm in Sources */,
> 				517A530F1F47A86200DCDC0A /* WebSWClientConnectionMessageReceiver.cpp in Sources */,
> 				460F488F1F996F7100CF4B87 /* WebSWContextManagerConnectionMessageReceiver.cpp in Sources */,
> 				9356F2DF2152B72300E6D5DF /* WebSWOriginStore.cpp in Sources */,
>diff --git a/Source/WebKit/WebProcess/Network/NetworkProcessConnection.cpp b/Source/WebKit/WebProcess/Network/NetworkProcessConnection.cpp
>index 161f8da41fa86e611fd943107dfe6f63640c3e2e..0349ca3712c8db45536648cccf41ed57e90f3887 100644
>--- a/Source/WebKit/WebProcess/Network/NetworkProcessConnection.cpp
>+++ b/Source/WebKit/WebProcess/Network/NetworkProcessConnection.cpp
>@@ -51,6 +51,8 @@
> #include "WebSWContextManagerConnection.h"
> #include "WebSWContextManagerConnectionMessages.h"
> #include "WebServiceWorkerProvider.h"
>+#include "WebSocketChannel.h"
>+#include "WebSocketChannelMessages.h"
> #include "WebSocketStream.h"
> #include "WebSocketStreamMessages.h"
> #include <WebCore/CachedResource.h>
>@@ -88,6 +90,10 @@ void NetworkProcessConnection::didReceiveMessage(IPC::Connection& connection, IP
>             stream->didReceiveMessage(connection, decoder);
>         return;
>     }
>+    if (decoder.messageReceiverName() == Messages::WebSocketChannel::messageReceiverName()) {
>+        WebProcess::singleton().webSocketChannelManager().didReceiveMessage(connection, decoder);
>+        return;
>+    }
>     if (decoder.messageReceiverName() == Messages::WebPage::messageReceiverName()) {
>         if (auto* webPage = WebProcess::singleton().webPage(makeObjectIdentifier<PageIdentifierType>(decoder.destinationID())))
>             webPage->didReceiveWebPageMessage(connection, decoder);
>diff --git a/Source/WebKit/WebProcess/Network/WebSocketChannel.cpp b/Source/WebKit/WebProcess/Network/WebSocketChannel.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..97557cd88ee41211fce7057148a12bc1ee5a913e
>--- /dev/null
>+++ b/Source/WebKit/WebProcess/Network/WebSocketChannel.cpp
>@@ -0,0 +1,204 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or othe r materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#include "config.h"
>+#include "WebSocketChannel.h"
>+
>+#include "DataReference.h"
>+#include "NetworkConnectionToWebProcessMessages.h"
>+#include "NetworkProcessConnection.h"
>+#include "NetworkSocketChannelMessages.h"
>+#include "WebCoreArgumentCoders.h"
>+#include "WebProcess.h"
>+#include <WebCore/Document.h>
>+#include <WebCore/NotImplemented.h>
>+#include <WebCore/WebSocketChannel.h>
>+#include <WebCore/WebSocketChannelClient.h>
>+#include <pal/SessionID.h>
>+
>+namespace WebKit {
>+
>+Ref<WebSocketChannel> WebSocketChannel::create(WebCore::Document& document, WebCore::WebSocketChannelClient& client)
>+{
>+    return adoptRef(*new WebSocketChannel(document, client));
>+}
>+
>+WebSocketChannel::WebSocketChannel(WebCore::Document& document, WebCore::WebSocketChannelClient& client)
>+    : m_document(makeWeakPtr(document))
>+    , m_client(makeWeakPtr(client))
>+{
>+}
>+
>+WebSocketChannel::~WebSocketChannel()
>+{
>+}
>+
>+IPC::Connection* WebSocketChannel::messageSenderConnection() const
>+{
>+    return &WebProcess::singleton().ensureNetworkProcessConnection().connection();
>+}
>+
>+uint64_t WebSocketChannel::messageSenderDestinationID() const
>+{
>+    return identifier();
>+}
>+
>+String WebSocketChannel::subprotocol()
>+{
>+    // FIXME: support subprotocol.
>+    return emptyString();
>+}
>+
>+String WebSocketChannel::extensions()
>+{
>+    // FIXME: support extensions.
>+    return emptyString();
>+}
>+
>+bool WebSocketChannel::connect(const URL& url, const String& protocol)
>+{
>+    if (!m_document)
>+        return false;
>+    
>+    auto request = webSocketConnectRequest(*m_document, url);
>+    if (!request)
>+        return false;
>+
>+    if (request->url() != url && m_client)
>+        m_client->didUpgradeURL();
>+
>+    MessageSender::send(Messages::NetworkConnectionToWebProcess::CreateSocketChannel { m_document->sessionID(), *request, protocol, identifier() });
>+    return true;
>+}
>+
>+WebSocketChannel::SendResult WebSocketChannel::send(const String& message)
>+{
>+    auto byteLength = message.sizeInBytes();
>+    m_bufferedAmount += byteLength;
>+
>+    CompletionHandler<void()> completionHandler = [this, protectedThis = makeRef(*this), byteLength] {
>+        m_bufferedAmount -= byteLength;
>+        if (m_client)
>+            m_client->didUpdateBufferedAmount(m_bufferedAmount);
>+    };
>+    sendWithAsyncReply(Messages::NetworkSocketChannel::SendString { message }, WTFMove(completionHandler));
>+    return SendSuccess;
>+}
>+
>+WebSocketChannel::SendResult WebSocketChannel::send(const JSC::ArrayBuffer& binaryData, unsigned byteOffset, unsigned byteLength)
>+{
>+    m_bufferedAmount += byteLength;
>+    if (m_client)
>+        m_client->didUpdateBufferedAmount(m_bufferedAmount);
>+
>+    CompletionHandler<void()> completionHandler = [this, protectedThis = makeRef(*this), byteLength] {
>+        m_bufferedAmount -= byteLength;
>+        if (m_client)
>+            m_client->didUpdateBufferedAmount(m_bufferedAmount);
>+    };
>+    sendWithAsyncReply(Messages::NetworkSocketChannel::SendData { IPC::DataReference { static_cast<const uint8_t*>(binaryData.data()) + byteOffset, byteLength } }, WTFMove(completionHandler));
>+    return SendSuccess;
>+}
>+
>+WebSocketChannel::SendResult WebSocketChannel::send(WebCore::Blob&)
>+{
>+    notImplemented();
>+    return SendFail;
>+}
>+
>+unsigned WebSocketChannel::bufferedAmount() const
>+{
>+    return m_bufferedAmount;
>+}
>+
>+void WebSocketChannel::close(int code, const String& reason)
>+{
>+    m_isClosing = true;
>+    if (m_client)
>+        m_client->didStartClosingHandshake();
>+
>+    MessageSender::send(Messages::NetworkSocketChannel::Close { code, reason });
>+}
>+
>+void WebSocketChannel::fail(const String& reason)
>+{
>+    MessageSender::send(Messages::NetworkSocketChannel::Close { 0, reason });
>+}
>+
>+void WebSocketChannel::disconnect()
>+{
>+    MessageSender::send(Messages::NetworkSocketChannel::Close { 0, { } });
>+}
>+
>+void WebSocketChannel::didConnect()
>+{
>+    if (m_isClosing)
>+        return;
>+
>+    if (m_client)
>+        m_client->didConnect();
>+}
>+
>+void WebSocketChannel::didReceiveText(const String& message)
>+{
>+    if (m_isClosing)
>+        return;
>+
>+    if (m_client)
>+        m_client->didReceiveMessage(message);
>+}
>+
>+void WebSocketChannel::didReceiveBinaryData(const IPC::DataReference& data)
>+{
>+    if (m_isClosing)
>+        return;
>+
>+    if (m_client)
>+        m_client->didReceiveBinaryData(data.vector());
>+}
>+
>+void WebSocketChannel::didClose(unsigned short code, const String& reason)
>+{
>+    if (!m_client)
>+        return;
>+
>+    if (code == WebCore::WebSocketChannel::CloseEventCodeNormalClosure)
>+        m_client->didStartClosingHandshake();
>+
>+    m_client->didClose(m_bufferedAmount, (m_isClosing || code == WebCore::WebSocketChannel::CloseEventCodeNormalClosure) ? WebCore::WebSocketChannelClient::ClosingHandshakeComplete : WebCore::WebSocketChannelClient::ClosingHandshakeIncomplete, code, reason);
>+}
>+    
>+void WebSocketChannel::didFail()
>+{
>+    if (m_client)
>+        m_client->didReceiveMessageError();
>+}
>+
>+void WebSocketChannel::networkProcessCrashed()
>+{
>+    didFail();
>+}
>+
>+} // namespace WebKit
>diff --git a/Source/WebKit/WebProcess/Network/WebSocketChannel.h b/Source/WebKit/WebProcess/Network/WebSocketChannel.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..927dd5c81ad9240637ec66503a70fae6cb6409ad
>--- /dev/null
>+++ b/Source/WebKit/WebProcess/Network/WebSocketChannel.h
>@@ -0,0 +1,91 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#include "MessageReceiver.h"
>+#include "MessageSender.h"
>+#include <WebCore/ThreadableWebSocketChannel.h>
>+#include <pal/SessionID.h>
>+#include <wtf/Identified.h>
>+#include <wtf/WeakPtr.h>
>+
>+namespace IPC {
>+class Connection;
>+class Decoder;
>+class DataReference;
>+}
>+
>+namespace WebKit {
>+
>+class WebSocketChannel : public IPC::MessageSender, public IPC::MessageReceiver, public WebCore::ThreadableWebSocketChannel, public RefCounted<WebSocketChannel>, public Identified<WebSocketChannel> {
>+public:
>+    static Ref<WebSocketChannel> create(WebCore::Document&, WebCore::WebSocketChannelClient&);
>+    ~WebSocketChannel();
>+
>+    void didReceiveMessage(IPC::Connection&, IPC::Decoder&);
>+
>+    void networkProcessCrashed();
>+    void didFail();
>+
>+    using RefCounted<WebSocketChannel>::ref;
>+    using RefCounted<WebSocketChannel>::deref;
>+
>+private:
>+    WebSocketChannel(WebCore::Document&, WebCore::WebSocketChannelClient&);
>+
>+    // ThreadableWebSocketChannel
>+    bool connect(const URL&, const String& protocol) final;
>+    String subprotocol() final;
>+    String extensions() final;
>+    SendResult send(const String& message) final;
>+    SendResult send(const JSC::ArrayBuffer&, unsigned byteOffset, unsigned byteLength) final;
>+    SendResult send(WebCore::Blob&) final;
>+    unsigned bufferedAmount() const final;
>+    void close(int code, const String& reason) final;
>+    void fail(const String& reason) final;
>+    void disconnect() final;
>+    void suspend() final { };
>+    void resume() final { };
>+    void refThreadableWebSocketChannel() final { ref(); }
>+    void derefThreadableWebSocketChannel() final { deref(); }
>+
>+    // Message receivers
>+    void didConnect();
>+    void didReceiveText(const String&);
>+    void didReceiveBinaryData(const IPC::DataReference&);
>+    void didClose(unsigned short code, const String&);
>+
>+    // MessageSender
>+    IPC::Connection* messageSenderConnection() const final;
>+    uint64_t messageSenderDestinationID() const final;
>+
>+    WeakPtr<WebCore::Document> m_document;
>+    WeakPtr<WebCore::WebSocketChannelClient> m_client;
>+    size_t m_bufferedAmount { 0 };
>+    bool m_isClosing { false };
>+};
>+
>+} // namespace WebKit
>diff --git a/Source/WebKit/WebProcess/Network/WebSocketChannel.messages.in b/Source/WebKit/WebProcess/Network/WebSocketChannel.messages.in
>new file mode 100644
>index 0000000000000000000000000000000000000000..7ef413baa6077b49641895560253cf6b520b96d8
>--- /dev/null
>+++ b/Source/WebKit/WebProcess/Network/WebSocketChannel.messages.in
>@@ -0,0 +1,28 @@
>+# Copyright (C) 2017 Apple Inc. All rights reserved.
>+#
>+# Redistribution and use in source and binary forms, with or without
>+# modification, are permitted provided that the following conditions
>+# are met:
>+# 1.  Redistributions of source code must retain the above copyright
>+#     notice, this list of conditions and the following disclaimer.
>+# 2.  Redistributions in binary form must reproduce the above copyright
>+#     notice, this list of conditions and the following disclaimer in the
>+#     documentation and/or other materials provided with the distribution.
>+#
>+# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
>+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
>+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
>+# DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR
>+# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
>+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
>+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
>+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
>+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) A RISING IN ANY WAY OUT OF THE USE
>+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>+
>+messages -> WebSocketChannel {
>+    DidConnect()
>+    DidClose(unsigned short code, String reason)
>+    DidReceiveText(String message)
>+    DidReceiveBinaryData(IPC::DataReference data)
>+}
>diff --git a/Source/WebKit/WebProcess/Network/WebSocketChannelManager.cpp b/Source/WebKit/WebProcess/Network/WebSocketChannelManager.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..942005b8ff4a616d2be363cabece7bee8958ed44
>--- /dev/null
>+++ b/Source/WebKit/WebProcess/Network/WebSocketChannelManager.cpp
>@@ -0,0 +1,52 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#include "config.h"
>+#include "WebSocketChannelManager.h"
>+
>+namespace WebKit {
>+
>+RefPtr<WebCore::ThreadableWebSocketChannel> WebSocketChannelManager::createWebSocketChannel(WebCore::Document& document, WebCore::WebSocketChannelClient& client)
>+{
>+    auto channel = WebSocketChannel::create(document, client);
>+    m_channels.add(channel->identifier(), channel.copyRef());
>+    return channel;
>+}
>+
>+void WebSocketChannelManager::networkProcessCrashed()
>+{
>+    auto channels = WTFMove(m_channels);
>+    for (auto& channel : channels.values())
>+        channel->networkProcessCrashed();
>+}
>+
>+void WebSocketChannelManager::didReceiveMessage(IPC::Connection& connection, IPC::Decoder& decoder)
>+{
>+    auto iterator = m_channels.find(decoder.destinationID());
>+    if (iterator != m_channels.end())
>+        iterator->value->didReceiveMessage(connection, decoder);
>+}
>+
>+} // namespace WebKit
>diff --git a/Source/WebKit/WebProcess/Network/WebSocketChannelManager.h b/Source/WebKit/WebProcess/Network/WebSocketChannelManager.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..7dc04afcaff5fcdcc91cdd60612be43ad1f494ef
>--- /dev/null
>+++ b/Source/WebKit/WebProcess/Network/WebSocketChannelManager.h
>@@ -0,0 +1,54 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#include "WebSocketChannel.h"
>+
>+namespace IPC {
>+class Connection;
>+class Decoder;
>+}
>+
>+namespace WebCore {
>+class Document;
>+class ThreadableWebSocketChannel;
>+}
>+
>+namespace WebKit {
>+
>+class WebSocketChannelManager {
>+public:
>+    WebSocketChannelManager() = default;
>+    RefPtr<WebCore::ThreadableWebSocketChannel> createWebSocketChannel(WebCore::Document&, WebCore::WebSocketChannelClient&);
>+
>+    void networkProcessCrashed();
>+    void didReceiveMessage(IPC::Connection&, IPC::Decoder&);
>+
>+private:
>+    HashMap<uint64_t, Ref<WebSocketChannel>> m_channels;
>+};
>+
>+} // namespace WebKit
>diff --git a/Source/WebKit/WebProcess/Network/WebSocketProvider.cpp b/Source/WebKit/WebProcess/Network/WebSocketProvider.cpp
>index 54709dbb90f6f0aa9e5cc7c5f411515e2b6b37af..1bc6941ecd816b9147a81acdae280159ebb67608 100644
>--- a/Source/WebKit/WebProcess/Network/WebSocketProvider.cpp
>+++ b/Source/WebKit/WebProcess/Network/WebSocketProvider.cpp
>@@ -41,4 +41,9 @@ Ref<SocketStreamHandle> WebSocketProvider::createSocketStreamHandle(const URL& u
>     return WebSocketStream::create(url, client, sessionID, credentialPartition);
> }
> 
>+RefPtr<WebCore::ThreadableWebSocketChannel> WebSocketProvider::createWebSocketChannel(Document& document, WebCore::WebSocketChannelClient& client)
>+{
>+    return WebProcess::singleton().webSocketChannelManager().createWebSocketChannel(document, client);
>+}
>+
> } // namespace WebKit
>diff --git a/Source/WebKit/WebProcess/Network/WebSocketProvider.h b/Source/WebKit/WebProcess/Network/WebSocketProvider.h
>index 290b99c5ecc9bd2929a04a3de3b366d89507d3c5..73e4ce81f1d98911405e1fc488cc07889a2328c7 100644
>--- a/Source/WebKit/WebProcess/Network/WebSocketProvider.h
>+++ b/Source/WebKit/WebProcess/Network/WebSocketProvider.h
>@@ -33,6 +33,7 @@ class WebSocketProvider final : public WebCore::SocketProvider {
> public:
>     static Ref<WebSocketProvider> create() { return adoptRef(*new WebSocketProvider); }
>     Ref<WebCore::SocketStreamHandle> createSocketStreamHandle(const URL&, WebCore::SocketStreamHandleClient&, PAL::SessionID, const String& credentialPartition, const WebCore::StorageSessionProvider*) final;
>+    RefPtr<WebCore::ThreadableWebSocketChannel> createWebSocketChannel(WebCore::Document&, WebCore::WebSocketChannelClient&) final;
>     virtual ~WebSocketProvider() { }
> };
> 
>diff --git a/Source/WebKit/WebProcess/Network/WebSocketStream.cpp b/Source/WebKit/WebProcess/Network/WebSocketStream.cpp
>index 1fb6961fff0bad631de1092c04cf268e2c278c4c..06091f057ca26ccb3afc2655431f600aebd45051 100644
>--- a/Source/WebKit/WebProcess/Network/WebSocketStream.cpp
>+++ b/Source/WebKit/WebProcess/Network/WebSocketStream.cpp
>@@ -8,7 +8,7 @@
>  *    notice, this list of conditions and the following disclaimer.
>  * 2. Redistributions in binary form must reproduce the above copyright
>  *    notice, this list of conditions and the following disclaimer in the
>- *    documentation and/or other materials provided with the distribution.
>+ *    documentation and/or othe r materials provided with the distribution.
>  *
>  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>diff --git a/Source/WebKit/WebProcess/Network/WebSocketStream.messages.in b/Source/WebKit/WebProcess/Network/WebSocketStream.messages.in
>index e7591770f333c3d522ed67e8d7e90918c680c649..fa44103de6100dfd039a3b61bde2c2e14a8b82e9 100644
>--- a/Source/WebKit/WebProcess/Network/WebSocketStream.messages.in
>+++ b/Source/WebKit/WebProcess/Network/WebSocketStream.messages.in
>@@ -1,4 +1,4 @@
>-# Copyright (C) 2017 Apple Inc. All rights reserved.
>+# Copyright (C) 2019 Apple Inc. All rights reserved.
> #
> # Redistribution and use in source and binary forms, with or without
> # modification, are permitted provided that the following conditions
>diff --git a/Source/WebKit/WebProcess/WebCoreSupport/ios/WebPreviewLoaderClient.h b/Source/WebKit/WebProcess/WebCoreSupport/ios/WebPreviewLoaderClient.h
>index be887ad8a7f0b657d1fa451d1833cf1cd44b5375..8a8a98474715cfe613020284e0d16c10d4ef5615 100644
>--- a/Source/WebKit/WebProcess/WebCoreSupport/ios/WebPreviewLoaderClient.h
>+++ b/Source/WebKit/WebProcess/WebCoreSupport/ios/WebPreviewLoaderClient.h
>@@ -26,6 +26,7 @@
> #pragma once
> 
> #include "QuickLookDocumentData.h"
>+#include <WebCore/PageIdentifier.h>
> #include <WebCore/PreviewLoaderClient.h>
> #include <wtf/text/WTFString.h>
> 
>diff --git a/Source/WebKit/WebProcess/WebProcess.cpp b/Source/WebKit/WebProcess/WebProcess.cpp
>index 6174b0a3bb0b374ae984d3ab1bd8bf2373bd57af..28055139782cb0c340b2011250b625deb8216329 100644
>--- a/Source/WebKit/WebProcess/WebProcess.cpp
>+++ b/Source/WebKit/WebProcess/WebProcess.cpp
>@@ -1316,6 +1316,7 @@ void WebProcess::networkProcessConnectionClosed(NetworkProcessConnection* connec
> 
>     m_webLoaderStrategy.networkProcessCrashed();
>     WebSocketStream::networkProcessCrashed();
>+    m_webSocketChannelManager.networkProcessCrashed();
> 
>     for (auto& page : m_pageMap.values()) {
>         page->stopAllURLSchemeTasks();
>diff --git a/Source/WebKit/WebProcess/WebProcess.h b/Source/WebKit/WebProcess/WebProcess.h
>index 8b63f2947b573710df4b2a9fac934468bd24f2c2..a6444210deffe3d66ffaee7e905bdbf862a6c934 100644
>--- a/Source/WebKit/WebProcess/WebProcess.h
>+++ b/Source/WebKit/WebProcess/WebProcess.h
>@@ -38,6 +38,7 @@
> #include "WebInspectorInterruptDispatcher.h"
> #include "WebProcessCreationParameters.h"
> #include "WebSQLiteDatabaseTracker.h"
>+#include "WebSocketChannelManager.h"
> #include <WebCore/ActivityState.h>
> #include <WebCore/PageIdentifier.h>
> #include <WebCore/RegistrableDomain.h>
>@@ -266,6 +267,7 @@ public:
>     WebAutomationSessionProxy* automationSessionProxy() { return m_automationSessionProxy.get(); }
> 
>     WebCacheStorageProvider& cacheStorageProvider() { return m_cacheStorageProvider.get(); }
>+    WebSocketChannelManager& webSocketChannelManager() { return m_webSocketChannelManager; }
> 
> #if PLATFORM(IOS_FAMILY)
>     void accessibilityProcessSuspendedNotification(bool);
>@@ -499,6 +501,7 @@ private:
>     WebLoaderStrategy& m_webLoaderStrategy;
> 
>     Ref<WebCacheStorageProvider> m_cacheStorageProvider;
>+    WebSocketChannelManager m_webSocketChannelManager;
> 
>     std::unique_ptr<LibWebRTCNetwork> m_libWebRTCNetwork;
> 
>diff --git a/LayoutTests/imported/w3c/resources/import-expectations.json b/LayoutTests/imported/w3c/resources/import-expectations.json
>index 270cbe18a435fe6f2550f6b5875428b3b0765b54..55435e9459573bdf5e015ec9735c8575755bcc82 100644
>--- a/LayoutTests/imported/w3c/resources/import-expectations.json
>+++ b/LayoutTests/imported/w3c/resources/import-expectations.json
>@@ -352,7 +352,8 @@
>     "web-platform-tests/webmessaging/": "import", 
>     "web-platform-tests/webrtc": "import", 
>     "web-platform-tests/webrtc/legacy": "skip", 
>-    "web-platform-tests/websockets": "skip", 
>+    "web-platform-tests/websocket": "import", 
>+    "web-platform-tests/websockets": "import", 
>     "web-platform-tests/webstorage": "skip", 
>     "web-platform-tests/webusb": "skip", 
>     "web-platform-tests/webvr": "skip", 
>diff --git a/LayoutTests/imported/w3c/resources/resource-files.json b/LayoutTests/imported/w3c/resources/resource-files.json
>index 1d4396ac1a398db5fe3c3257e073e130f5117af0..7127e22ed881f47bd9c67f50faf43e22a63f3401 100644
>--- a/LayoutTests/imported/w3c/resources/resource-files.json
>+++ b/LayoutTests/imported/w3c/resources/resource-files.json
>@@ -1139,6 +1139,13 @@
>         "web-platform-tests/webmessaging/support/ChildWindowPostMessage.htm",
>         "web-platform-tests/webmessaging/without-ports/019-1.html",
>         "web-platform-tests/webmessaging/without-ports/020-1.html",
>+        "web-platform-tests/websockets/multi-globals/support/incumbent.sub.html",
>+        "web-platform-tests/websockets/multi-globals/support/relevant.html",
>+        "web-platform-tests/websockets/unload-a-document/001-1.html",
>+        "web-platform-tests/websockets/unload-a-document/001-2.html",
>+        "web-platform-tests/websockets/unload-a-document/002-1.html",
>+        "web-platform-tests/websockets/unload-a-document/002-2.html",
>+        "web-platform-tests/websockets/unload-a-document/005-1.html",
>         "web-platform-tests/workers/data-url-shared-window.html",
>         "web-platform-tests/workers/non-automated/application-cache-dedicated.html",
>         "web-platform-tests/workers/non-automated/infinite-nested.html",
>diff --git a/LayoutTests/tests-options.json b/LayoutTests/tests-options.json
>index 63008c24dd8e77d3420039e925e4d99e86fc466a..2e7ec3e5506a4b79e7328b624db4baa3c1c40229 100644
>--- a/LayoutTests/tests-options.json
>+++ b/LayoutTests/tests-options.json
>@@ -1721,6 +1721,60 @@
>     "imported/w3c/web-platform-tests/webrtc/RTCRtpSender-transport.https.html": [
>         "slow"
>     ],
>+    "imported/w3c/web-platform-tests/websockets/binary/002.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/binary/004.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/constructor/013.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/constructor/014.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/cookies/005.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/cookies/007.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/extended-payload-length.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/interfaces/WebSocket/bufferedAmount/bufferedAmount-large.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/interfaces/WebSocket/close/close-connecting.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/interfaces/WebSocket/events/016.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/interfaces/WebSocket/send/005.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/interfaces/WebSocket/send/010.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/keeping-connection-open/001.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/opening-handshake/002.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/opening-handshake/003.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/unload-a-document/002.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/unload-a-document/004.html": [
>+        "slow"
>+    ],
>+    "imported/w3c/web-platform-tests/websockets/unload-a-document/005.html": [
>+        "slow"
>+    ],
>     "imported/w3c/web-platform-tests/xhr/progress-events-response-data-gzip.htm": [
>         "slow"
>     ],

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Attachments on bug 198568: 371620 | 371622 | 371623 | 371630 | 371747 | 371753 | 371759 | 371760 | 371761 | 371762 | 371763 | 371770 | 371771 | 371774 | 371777 | 371789 | 371896 | 371997