Attachment 372951 Details for Bug 199230 – patch

[patch] patch

attachment.cgi.patch (text/plain), 57.45 KB, created by Alex Christensen on 2019-06-26 14:24:13 PDT

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Creator: Alex Christensen

Created: 2019-06-26 14:24:13 PDT

Size: 57.45 KB

patch

obsolete

>Subversion Revision: 246846
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 0b692e71fc4dd6bb1949f7b33aa2da7a177a29c3..d17ea9d2224475647d03d633baaa02bb98b0d706 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,49 @@
>+2019-06-26  Alex Christensen  <achristensen@webkit.org>
>+
>+        testRunner.setAlwaysAcceptCookies should wait for cookie accept policy to be set
>+        https://bugs.webkit.org/show_bug.cgi?id=199230
>+        <rdar://51757107>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        This patch adds an optional callback to WKCookieManagerSetHTTPCookieAcceptPolicy which is luckily only used for testing.
>+        It also adds listener-based asynchronous versions of didReceiveSynchronousMessageFromInjectedBundle.
>+        WebKitTestRunner uses these new abilities to wait for the cookie accept policy to be set in the network process while the web process is hung.
>+        This removes the race condition that was causing some flakiness in tests that use testRunner.setAlwaysAcceptCookies
>+
>+        * Shared/API/APIObject.h:
>+        * Shared/API/c/WKBase.h:
>+        * Sources.txt:
>+        * UIProcess/API/APIInjectedBundleClient.h:
>+        (API::InjectedBundleClient::didReceiveSynchronousMessageFromInjectedBundle):
>+        * UIProcess/API/APIMessageListener.h: Copied from Source/WebKit/UIProcess/API/APIInjectedBundleClient.h.
>+        (API::MessageListener::create):
>+        (API::MessageListener::sendReply):
>+        (API::MessageListener::MessageListener):
>+        * UIProcess/API/C/WKAPICast.h:
>+        * UIProcess/API/C/WKContextInjectedBundleClient.h:
>+        * UIProcess/API/C/WKCookieManager.cpp:
>+        (WKCookieManagerSetHTTPCookieAcceptPolicy):
>+        * UIProcess/API/C/WKCookieManager.h:
>+        * UIProcess/API/C/WKMessageListener.cpp: Copied from Source/WebKit/UIProcess/API/APIInjectedBundleClient.h.
>+        (WKMessageListenerGetTypeID):
>+        (WKMessageListenerSendReply):
>+        * UIProcess/API/C/WKMessageListener.h: Copied from Source/WebKit/UIProcess/API/APIInjectedBundleClient.h.
>+        * UIProcess/API/C/WKPageInjectedBundleClient.h:
>+        * UIProcess/WebContextInjectedBundleClient.cpp:
>+        (WebKit::WebContextInjectedBundleClient::didReceiveSynchronousMessageFromInjectedBundle):
>+        * UIProcess/WebContextInjectedBundleClient.h:
>+        * UIProcess/WebPageInjectedBundleClient.cpp:
>+        (WebKit::WebPageInjectedBundleClient::didReceiveSynchronousMessageFromInjectedBundle):
>+        * UIProcess/WebPageInjectedBundleClient.h:
>+        * UIProcess/WebPageProxy.cpp:
>+        (WebKit::WebPageProxy::handleSynchronousMessage):
>+        * UIProcess/WebPageProxy.h:
>+        (WebKit::WebPageProxy::injectedBundleClient): Deleted.
>+        * UIProcess/WebProcessPool.cpp:
>+        (WebKit::WebProcessPool::handleSynchronousMessage):
>+        * WebKit.xcodeproj/project.pbxproj:
>+
> 2019-06-26  Zalan Bujtas  <zalan@apple.com>
> 
>         [ContentChangeObserver] Dispatch synthetic mouse event asynchronously in completePendingSyntheticClickForContentChangeObserver
>diff --git a/Source/WebKit/Shared/API/APIObject.h b/Source/WebKit/Shared/API/APIObject.h
>index be8c78bf32312e60759d294c631a4a63df53044c..4029df90e7ce228dc139572124a596c284e80acf 100644
>--- a/Source/WebKit/Shared/API/APIObject.h
>+++ b/Source/WebKit/Shared/API/APIObject.h
>@@ -133,6 +133,7 @@ public:
>         Inspector,
>         KeyValueStorageManager,
>         MediaCacheManager,
>+        MessageListener,
>         Navigation,
>         NavigationAction,
>         NavigationData,
>diff --git a/Source/WebKit/Shared/API/c/WKBase.h b/Source/WebKit/Shared/API/c/WKBase.h
>index 1164c1582c412a7b550a5b1c56bb1df54ffe7aa9..03914b21d2f83784877019a6dce5f48baf0f9804 100644
>--- a/Source/WebKit/Shared/API/c/WKBase.h
>+++ b/Source/WebKit/Shared/API/c/WKBase.h
>@@ -106,6 +106,7 @@ typedef const struct OpaqueWKInspector* WKInspectorRef;
> typedef const struct OpaqueWKKeyValueStorageManager* WKKeyValueStorageManagerRef;
> typedef const struct OpaqueWKMediaSessionFocusManager* WKMediaSessionFocusManagerRef;
> typedef const struct OpaqueWKMediaSessionMetadata* WKMediaSessionMetadataRef;
>+typedef const struct OpaqueWKMessageListener* WKMessageListenerRef;
> typedef const struct OpaqueWKNavigationAction* WKNavigationActionRef;
> typedef const struct OpaqueWKNavigationData* WKNavigationDataRef;
> typedef const struct OpaqueWKNavigation* WKNavigationRef;
>diff --git a/Source/WebKit/Sources.txt b/Source/WebKit/Sources.txt
>index 2d77ea09b50ce23897bcf2bd5ba1c21e556b770d..7d25ed4d0bd864052fd47d253afc9aa26b35d461 100644
>--- a/Source/WebKit/Sources.txt
>+++ b/Source/WebKit/Sources.txt
>@@ -344,6 +344,7 @@ UIProcess/API/C/WKIconDatabase.cpp
> UIProcess/API/C/WKInspector.cpp
> UIProcess/API/C/WKKeyValueStorageManager.cpp
> UIProcess/API/C/WKMediaSessionMetadata.cpp
>+UIProcess/API/C/WKMessageListener.cpp
> UIProcess/API/C/WKMockDisplay.cpp
> UIProcess/API/C/WKMockMediaDevice.cpp
> UIProcess/API/C/WKNavigationActionRef.cpp
>diff --git a/Source/WebKit/UIProcess/API/APIInjectedBundleClient.h b/Source/WebKit/UIProcess/API/APIInjectedBundleClient.h
>index 2350c61fe13219879e3d199cd890eed8aa37c535..2bebc12f6618a78439a3326d2a52b0325efd07fb 100644
>--- a/Source/WebKit/UIProcess/API/APIInjectedBundleClient.h
>+++ b/Source/WebKit/UIProcess/API/APIInjectedBundleClient.h
>@@ -39,7 +39,7 @@ public:
>     virtual ~InjectedBundleClient() = default;
> 
>     virtual void didReceiveMessageFromInjectedBundle(WebKit::WebProcessPool&, const WTF::String&, API::Object*) { }
>-    virtual void didReceiveSynchronousMessageFromInjectedBundle(WebKit::WebProcessPool&, const WTF::String&, API::Object*, RefPtr<API::Object>&) { }
>+    virtual void didReceiveSynchronousMessageFromInjectedBundle(WebKit::WebProcessPool&, const WTF::String&, API::Object*, CompletionHandler<void(RefPtr<API::Object>)>&& completionHandler) { completionHandler(RefPtr<API::Object>(nullptr)); }
>     virtual RefPtr<API::Object> getInjectedBundleInitializationUserData(WebKit::WebProcessPool&) { return nullptr; }
> };
> 
>diff --git a/Source/WebKit/UIProcess/API/APIMessageListener.h b/Source/WebKit/UIProcess/API/APIMessageListener.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..e88a5766c71c84a188a24be53dad5f66ab22cbea
>--- /dev/null
>+++ b/Source/WebKit/UIProcess/API/APIMessageListener.h
>@@ -0,0 +1,53 @@
>+/*
>+ * 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 "APIObject.h"
>+#include <wtf/CompletionHandler.h>
>+
>+namespace API {
>+
>+class MessageListener : public ObjectImpl<Object::Type::MessageListener> {
>+    WTF_MAKE_NONCOPYABLE(MessageListener);
>+public:
>+    static Ref<MessageListener> create(CompletionHandler<void(RefPtr<API::Object>)>&& reply)
>+    {
>+        return adoptRef(*new MessageListener(WTFMove(reply)));
>+    }
>+
>+    void sendReply(RefPtr<API::Object>&& reply)
>+    {
>+        m_reply(WTFMove(reply));
>+    }
>+
>+private:
>+    MessageListener(CompletionHandler<void(RefPtr<API::Object>)>&& reply)
>+        : m_reply(WTFMove(reply)) { }
>+
>+    CompletionHandler<void(RefPtr<API::Object>)> m_reply;
>+};
>+
>+} // namespace API
>diff --git a/Source/WebKit/UIProcess/API/C/WKAPICast.h b/Source/WebKit/UIProcess/API/C/WKAPICast.h
>index c86603ddc94fdde78ff5e7e8c3cf73d5cd93c609..5173755948dd415e27a5f73ea472fac8095beb19 100644
>--- a/Source/WebKit/UIProcess/API/C/WKAPICast.h
>+++ b/Source/WebKit/UIProcess/API/C/WKAPICast.h
>@@ -58,6 +58,7 @@ class ExperimentalFeature;
> class FrameHandle;
> class FrameInfo;
> class HitTestResult;
>+class MessageListener;
> class Navigation;
> class NavigationAction;
> class NavigationData;
>@@ -137,6 +138,7 @@ WK_ADD_API_MAPPING(WKIconDatabaseRef, WebIconDatabase)
> WK_ADD_API_MAPPING(WKInspectorRef, WebInspectorProxy)
> WK_ADD_API_MAPPING(WKMediaSessionFocusManagerRef, WebMediaSessionFocusManager)
> WK_ADD_API_MAPPING(WKMediaSessionMetadataRef, WebMediaSessionMetadata)
>+WK_ADD_API_MAPPING(WKMessageListenerRef, API::MessageListener)
> WK_ADD_API_MAPPING(WKNavigationActionRef, API::NavigationAction)
> WK_ADD_API_MAPPING(WKNavigationDataRef, API::NavigationData)
> WK_ADD_API_MAPPING(WKNavigationRef, API::Navigation)
>diff --git a/Source/WebKit/UIProcess/API/C/WKContextInjectedBundleClient.h b/Source/WebKit/UIProcess/API/C/WKContextInjectedBundleClient.h
>index d3456aa680272bc410726daef3e4b909b8c8182d..b3328e8c0b7a20d112e947509e6b7e2dc8b75f9b 100644
>--- a/Source/WebKit/UIProcess/API/C/WKContextInjectedBundleClient.h
>+++ b/Source/WebKit/UIProcess/API/C/WKContextInjectedBundleClient.h
>@@ -29,9 +29,10 @@
> #include <WebKit/WKBase.h>
> 
> // Injected Bundle Client
>-typedef void (*WKContextDidReceiveMessageFromInjectedBundleCallback)(WKContextRef page, WKStringRef messageName, WKTypeRef messageBody, const void *clientInfo);
>-typedef void (*WKContextDidReceiveSynchronousMessageFromInjectedBundleCallback)(WKContextRef page, WKStringRef messageName, WKTypeRef messageBody, WKTypeRef* returnData, const void *clientInfo);
>+typedef void (*WKContextDidReceiveMessageFromInjectedBundleCallback)(WKContextRef context, WKStringRef messageName, WKTypeRef messageBody, const void *clientInfo);
>+typedef void (*WKContextDidReceiveSynchronousMessageFromInjectedBundleCallback)(WKContextRef context, WKStringRef messageName, WKTypeRef messageBody, WKTypeRef* returnData, const void *clientInfo);
> typedef WKTypeRef (*WKContextGetInjectedBundleInitializationUserDataCallback)(WKContextRef context, const void *clientInfo);
>+typedef void (*WKContextDidReceiveSynchronousMessageFromInjectedBundleWithListenerCallback)(WKContextRef context, WKStringRef messageName, WKTypeRef messageBody, WKMessageListenerRef listener, const void *clientInfo);
> 
> typedef struct WKContextInjectedBundleClientBase {
>     int                                                                 version;
>@@ -57,4 +58,18 @@ typedef struct WKContextInjectedBundleClientV1 {
>     WKContextGetInjectedBundleInitializationUserDataCallback            getInjectedBundleInitializationUserData;
> } WKContextInjectedBundleClientV1;
> 
>+typedef struct WKContextInjectedBundleClientV2 {
>+    WKContextInjectedBundleClientBase                                   base;
>+
>+    // Version 0.
>+    WKContextDidReceiveMessageFromInjectedBundleCallback                didReceiveMessageFromInjectedBundle;
>+    WKContextDidReceiveSynchronousMessageFromInjectedBundleCallback     didReceiveSynchronousMessageFromInjectedBundle;
>+
>+    // Version 1.
>+    WKContextGetInjectedBundleInitializationUserDataCallback            getInjectedBundleInitializationUserData;
>+
>+    // Version 2.
>+    WKContextDidReceiveSynchronousMessageFromInjectedBundleWithListenerCallback didReceiveSynchronousMessageFromInjectedBundleWithListener;
>+} WKContextInjectedBundleClientV2;
>+
> #endif // WKContextInjectedBundleClient_h
>diff --git a/Source/WebKit/UIProcess/API/C/WKCookieManager.cpp b/Source/WebKit/UIProcess/API/C/WKCookieManager.cpp
>index cb7f0bd1b71fb095aa4b5fb33803a532a4c56f77..0636ea6c2c77e3fd4d0b4dc6f12d08deb8695048 100644
>--- a/Source/WebKit/UIProcess/API/C/WKCookieManager.cpp
>+++ b/Source/WebKit/UIProcess/API/C/WKCookieManager.cpp
>@@ -62,9 +62,12 @@ void WKCookieManagerDeleteAllCookiesModifiedAfterDate(WKCookieManagerRef cookieM
>     toImpl(cookieManagerRef)->deleteAllCookiesModifiedSince(PAL::SessionID::defaultSessionID(), WallTime::fromRawSeconds(date), [](CallbackBase::Error){});
> }
> 
>-void WKCookieManagerSetHTTPCookieAcceptPolicy(WKCookieManagerRef cookieManager, WKHTTPCookieAcceptPolicy policy)
>+void WKCookieManagerSetHTTPCookieAcceptPolicy(WKCookieManagerRef cookieManager, WKHTTPCookieAcceptPolicy policy, void* context, WKCookieManagerSetHTTPCookieAcceptPolicyFunction callback)
> {
>-    toImpl(cookieManager)->setHTTPCookieAcceptPolicy(PAL::SessionID::defaultSessionID(), toHTTPCookieAcceptPolicy(policy), [](CallbackBase::Error){});
>+    toImpl(cookieManager)->setHTTPCookieAcceptPolicy(PAL::SessionID::defaultSessionID(), toHTTPCookieAcceptPolicy(policy), [context, callback](CallbackBase::Error error) {
>+        if (callback)
>+            callback(error != CallbackBase::Error::None ? toAPI(API::Error::create().ptr()) : nullptr, context);
>+    });
> }
> 
> void WKCookieManagerGetHTTPCookieAcceptPolicy(WKCookieManagerRef cookieManager, void* context, WKCookieManagerGetHTTPCookieAcceptPolicyFunction callback)
>diff --git a/Source/WebKit/UIProcess/API/C/WKCookieManager.h b/Source/WebKit/UIProcess/API/C/WKCookieManager.h
>index c6514e3fa07b3e238b04c4b9eb009ce8ee1bf93d..73354d2cba4edf97b9a57920cd45bc774252baa5 100644
>--- a/Source/WebKit/UIProcess/API/C/WKCookieManager.h
>+++ b/Source/WebKit/UIProcess/API/C/WKCookieManager.h
>@@ -68,7 +68,8 @@ WK_EXPORT void WKCookieManagerDeleteAllCookies(WKCookieManagerRef cookieManager)
> // The time here is relative to the Unix epoch.
> WK_EXPORT void WKCookieManagerDeleteAllCookiesModifiedAfterDate(WKCookieManagerRef cookieManager, double);
> 
>-WK_EXPORT void WKCookieManagerSetHTTPCookieAcceptPolicy(WKCookieManagerRef cookieManager, WKHTTPCookieAcceptPolicy policy);
>+typedef void (*WKCookieManagerSetHTTPCookieAcceptPolicyFunction)(WKErrorRef, void*);
>+WK_EXPORT void WKCookieManagerSetHTTPCookieAcceptPolicy(WKCookieManagerRef cookieManager, WKHTTPCookieAcceptPolicy policy, void* context, WKCookieManagerSetHTTPCookieAcceptPolicyFunction callback);
> typedef void (*WKCookieManagerGetHTTPCookieAcceptPolicyFunction)(WKHTTPCookieAcceptPolicy, WKErrorRef, void*);
> WK_EXPORT void WKCookieManagerGetHTTPCookieAcceptPolicy(WKCookieManagerRef cookieManager, void* context, WKCookieManagerGetHTTPCookieAcceptPolicyFunction callback);
> 
>diff --git a/Source/WebKit/UIProcess/API/C/WKMessageListener.cpp b/Source/WebKit/UIProcess/API/C/WKMessageListener.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..9c010c47c1995ddb6015c6225d8c642a0d341390
>--- /dev/null
>+++ b/Source/WebKit/UIProcess/API/C/WKMessageListener.cpp
>@@ -0,0 +1,39 @@
>+/*
>+ * 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 "WKMessageListener.h"
>+
>+#include "APIMessageListener.h"
>+
>+WKTypeID WKMessageListenerGetTypeID()
>+{
>+    return toAPI(API::MessageListener::APIType);
>+}
>+
>+void WKMessageListenerSendReply(WKMessageListenerRef listenerRef, WKTypeRef value)
>+{
>+    toImpl(listenerRef)->sendReply(toImpl(value));
>+}
>diff --git a/Source/WebKit/UIProcess/API/C/WKMessageListener.h b/Source/WebKit/UIProcess/API/C/WKMessageListener.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..a4e8a2ef8216bda50fb0eea44c35e704b3e22dd4
>--- /dev/null
>+++ b/Source/WebKit/UIProcess/API/C/WKMessageListener.h
>@@ -0,0 +1,43 @@
>+/*
>+ * 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.
>+ */
>+
>+#ifndef WKMessageListener_h
>+#define WKMessageListener_h
>+
>+#include <WebKit/WKBase.h>
>+
>+#ifdef __cplusplus
>+extern "C" {
>+#endif
>+
>+WK_EXPORT WKTypeID WKMessageListenerGetTypeID();
>+
>+WK_EXPORT void WKMessageListenerSendReply(WKMessageListenerRef listener, WKTypeRef reply);
>+
>+#ifdef __cplusplus
>+}
>+#endif
>+
>+#endif /* WKMessageListener_h */
>diff --git a/Source/WebKit/UIProcess/API/C/WKPageInjectedBundleClient.h b/Source/WebKit/UIProcess/API/C/WKPageInjectedBundleClient.h
>index b22c3eb8662f5e76a03860de9b258a538b1b0c93..edbbf58ccc659742b9b1b44b5365257a3029d19e 100644
>--- a/Source/WebKit/UIProcess/API/C/WKPageInjectedBundleClient.h
>+++ b/Source/WebKit/UIProcess/API/C/WKPageInjectedBundleClient.h
>@@ -31,6 +31,7 @@
> typedef void (*WKPageDidReceiveMessageFromInjectedBundleCallback)(WKPageRef page, WKStringRef messageName, WKTypeRef messageBody, const void *clientInfo);
> typedef void (*WKPageDidReceiveSynchronousMessageFromInjectedBundleCallback)(WKPageRef page, WKStringRef messageName, WKTypeRef messageBody, WKTypeRef* returnData, const void *clientInfo);
> typedef WKTypeRef (*WKPageGetInjectedBundleInitializationUserDataCallback)(WKPageRef page, const void *clientInfo);
>+typedef void (*WKPageDidReceiveSynchronousMessageFromInjectedBundleWithListenerCallback)(WKPageRef page, WKStringRef messageName, WKTypeRef messageBody, WKMessageListenerRef listener, const void* clientInfo);
> 
> typedef struct WKPageInjectedBundleClientBase {
>     int                                                                 version;
>@@ -45,4 +46,15 @@ typedef struct WKPageInjectedBundleClientV0 {
>     WKPageDidReceiveSynchronousMessageFromInjectedBundleCallback     didReceiveSynchronousMessageFromInjectedBundle;
> } WKPageInjectedBundleClientV0;
> 
>+typedef struct WKPageInjectedBundleClientV1 {
>+    WKPageInjectedBundleClientBase                                   base;
>+
>+    // Version 0.
>+    WKPageDidReceiveMessageFromInjectedBundleCallback                didReceiveMessageFromInjectedBundle;
>+    WKPageDidReceiveSynchronousMessageFromInjectedBundleCallback     didReceiveSynchronousMessageFromInjectedBundle;
>+
>+    // Version 1.
>+    WKPageDidReceiveSynchronousMessageFromInjectedBundleWithListenerCallback didReceiveSynchronousMessageFromInjectedBundleWithListener;
>+} WKPageInjectedBundleClientV1;
>+
> #endif // WKPageInjectedBundleClient_h
>diff --git a/Source/WebKit/UIProcess/WebContextInjectedBundleClient.cpp b/Source/WebKit/UIProcess/WebContextInjectedBundleClient.cpp
>index f4ca62ccab6c3dce522234a3fea541eb2ecddde5..6db14522f0572b9a785de17a69a9ae910db9106b 100644
>--- a/Source/WebKit/UIProcess/WebContextInjectedBundleClient.cpp
>+++ b/Source/WebKit/UIProcess/WebContextInjectedBundleClient.cpp
>@@ -26,6 +26,7 @@
> #include "config.h"
> #include "WebContextInjectedBundleClient.h"
> 
>+#include "APIMessageListener.h"
> #include "WKAPICast.h"
> #include "WebProcessPool.h"
> #include <wtf/text/WTFString.h>
>@@ -45,14 +46,18 @@ void WebContextInjectedBundleClient::didReceiveMessageFromInjectedBundle(WebProc
>     m_client.didReceiveMessageFromInjectedBundle(toAPI(&processPool), toAPI(messageName.impl()), toAPI(messageBody), m_client.base.clientInfo);
> }
> 
>-void WebContextInjectedBundleClient::didReceiveSynchronousMessageFromInjectedBundle(WebProcessPool& processPool, const String& messageName, API::Object* messageBody, RefPtr<API::Object>& returnData)
>+void WebContextInjectedBundleClient::didReceiveSynchronousMessageFromInjectedBundle(WebProcessPool& processPool, const String& messageName, API::Object* messageBody, CompletionHandler<void(RefPtr<API::Object>)>&& completionHandler)
> {
>-    if (!m_client.didReceiveSynchronousMessageFromInjectedBundle)
>-        return;
>+    if (!m_client.didReceiveSynchronousMessageFromInjectedBundle && !m_client.didReceiveSynchronousMessageFromInjectedBundleWithListener)
>+        return completionHandler(nullptr);
>+
>+    if (m_client.didReceiveSynchronousMessageFromInjectedBundle) {
>+        WKTypeRef returnDataRef = nullptr;
>+        m_client.didReceiveSynchronousMessageFromInjectedBundle(toAPI(&processPool), toAPI(messageName.impl()), toAPI(messageBody), &returnDataRef, m_client.base.clientInfo);
>+        return completionHandler(adoptRef(toImpl(returnDataRef)));
>+    }
> 
>-    WKTypeRef returnDataRef = nullptr;
>-    m_client.didReceiveSynchronousMessageFromInjectedBundle(toAPI(&processPool), toAPI(messageName.impl()), toAPI(messageBody), &returnDataRef, m_client.base.clientInfo);
>-    returnData = adoptRef(toImpl(returnDataRef));
>+    m_client.didReceiveSynchronousMessageFromInjectedBundleWithListener(toAPI(&processPool), toAPI(messageName.impl()), toAPI(messageBody), toAPI(API::MessageListener::create(WTFMove(completionHandler)).ptr()), m_client.base.clientInfo);
> }
> 
> RefPtr<API::Object> WebContextInjectedBundleClient::getInjectedBundleInitializationUserData(WebProcessPool& processPool)
>diff --git a/Source/WebKit/UIProcess/WebContextInjectedBundleClient.h b/Source/WebKit/UIProcess/WebContextInjectedBundleClient.h
>index abfd6a4b786ff5f24fb9cdd5ca9617b1950740a4..0948bc597741e578b93dcf3840eb37022b69a94e 100644
>--- a/Source/WebKit/UIProcess/WebContextInjectedBundleClient.h
>+++ b/Source/WebKit/UIProcess/WebContextInjectedBundleClient.h
>@@ -34,7 +34,7 @@ namespace API {
> class Object;
> 
> template<> struct ClientTraits<WKContextInjectedBundleClientBase> {
>-    typedef std::tuple<WKContextInjectedBundleClientV0, WKContextInjectedBundleClientV1> Versions;
>+    typedef std::tuple<WKContextInjectedBundleClientV0, WKContextInjectedBundleClientV1, WKContextInjectedBundleClientV2> Versions;
> };
> }
> 
>@@ -48,7 +48,7 @@ public:
>     explicit WebContextInjectedBundleClient(const WKContextInjectedBundleClientBase*);
> 
>     void didReceiveMessageFromInjectedBundle(WebProcessPool&, const WTF::String&, API::Object*) override;
>-    void didReceiveSynchronousMessageFromInjectedBundle(WebProcessPool&, const WTF::String&, API::Object*, RefPtr<API::Object>&) override;
>+    void didReceiveSynchronousMessageFromInjectedBundle(WebProcessPool&, const WTF::String&, API::Object*, CompletionHandler<void(RefPtr<API::Object>)>&&) override;
>     RefPtr<API::Object> getInjectedBundleInitializationUserData(WebProcessPool&) override;
> };
> 
>diff --git a/Source/WebKit/UIProcess/WebPageInjectedBundleClient.cpp b/Source/WebKit/UIProcess/WebPageInjectedBundleClient.cpp
>index 353e7fb4237ac9a6456b480b2ec00c9a58fa7c62..44de8364b5284312022dd1c03eca988eff602805 100644
>--- a/Source/WebKit/UIProcess/WebPageInjectedBundleClient.cpp
>+++ b/Source/WebKit/UIProcess/WebPageInjectedBundleClient.cpp
>@@ -26,6 +26,7 @@
> #include "config.h"
> #include "WebPageInjectedBundleClient.h"
> 
>+#include "APIMessageListener.h"
> #include "WKAPICast.h"
> #include "WebProcessPool.h"
> #include <wtf/text/WTFString.h>
>@@ -41,14 +42,19 @@ void WebPageInjectedBundleClient::didReceiveMessageFromInjectedBundle(WebPagePro
>     m_client.didReceiveMessageFromInjectedBundle(toAPI(page), toAPI(messageName.impl()), toAPI(messageBody), m_client.base.clientInfo);
> }
> 
>-void WebPageInjectedBundleClient::didReceiveSynchronousMessageFromInjectedBundle(WebPageProxy* page, const String& messageName, API::Object* messageBody, RefPtr<API::Object>& returnData)
>+void WebPageInjectedBundleClient::didReceiveSynchronousMessageFromInjectedBundle(WebPageProxy* page, const String& messageName, API::Object* messageBody, CompletionHandler<void(RefPtr<API::Object>)>&& completionHandler)
> {
>-    if (!m_client.didReceiveSynchronousMessageFromInjectedBundle)
>-        return;
>+    if (!m_client.didReceiveSynchronousMessageFromInjectedBundle
>+        && !m_client.didReceiveSynchronousMessageFromInjectedBundleWithListener)
>+        return completionHandler(nullptr);
>+
>+    if (m_client.didReceiveSynchronousMessageFromInjectedBundle) {
>+        WKTypeRef returnDataRef = nullptr;
>+        m_client.didReceiveSynchronousMessageFromInjectedBundle(toAPI(page), toAPI(messageName.impl()), toAPI(messageBody), &returnDataRef, m_client.base.clientInfo);
>+        return completionHandler(adoptRef(toImpl(returnDataRef)));
>+    }
> 
>-    WKTypeRef returnDataRef = 0;
>-    m_client.didReceiveSynchronousMessageFromInjectedBundle(toAPI(page), toAPI(messageName.impl()), toAPI(messageBody), &returnDataRef, m_client.base.clientInfo);
>-    returnData = adoptRef(toImpl(returnDataRef));
>+    m_client.didReceiveSynchronousMessageFromInjectedBundleWithListener(toAPI(page), toAPI(messageName.impl()), toAPI(messageBody), toAPI(API::MessageListener::create(WTFMove(completionHandler)).ptr()), m_client.base.clientInfo);
> }
> 
> } // namespace WebKit
>diff --git a/Source/WebKit/UIProcess/WebPageInjectedBundleClient.h b/Source/WebKit/UIProcess/WebPageInjectedBundleClient.h
>index 30c7f354c001b4ed724485016a3ae7c4cf74347f..652982a812a9efbef521a6a9899fa4bee5faf34c 100644
>--- a/Source/WebKit/UIProcess/WebPageInjectedBundleClient.h
>+++ b/Source/WebKit/UIProcess/WebPageInjectedBundleClient.h
>@@ -23,8 +23,7 @@
>  * THE POSSIBILITY OF SUCH DAMAGE.
>  */
> 
>-#ifndef WebPageInjectedBundleClient_h
>-#define WebPageInjectedBundleClient_h
>+#pragma once
> 
> #include "APIClient.h"
> #include "WKPage.h"
>@@ -34,7 +33,7 @@ namespace API {
> class Object;
> 
> template<> struct ClientTraits<WKPageInjectedBundleClientBase> {
>-    typedef std::tuple<WKPageInjectedBundleClientV0> Versions;
>+    typedef std::tuple<WKPageInjectedBundleClientV0, WKPageInjectedBundleClientV1> Versions;
> };
> }
> 
>@@ -45,9 +44,7 @@ class WebPageProxy;
> class WebPageInjectedBundleClient : public API::Client<WKPageInjectedBundleClientBase> {
> public:
>     void didReceiveMessageFromInjectedBundle(WebPageProxy*, const String&, API::Object*);
>-    void didReceiveSynchronousMessageFromInjectedBundle(WebPageProxy*, const String&, API::Object*, RefPtr<API::Object>& returnData);
>+    void didReceiveSynchronousMessageFromInjectedBundle(WebPageProxy*, const String&, API::Object*, CompletionHandler<void(RefPtr<API::Object>)>&&);
> };
> 
> } // namespace WebKit
>-
>-#endif // WebPageInjectedBundleClient_h
>diff --git a/Source/WebKit/UIProcess/WebPageProxy.cpp b/Source/WebKit/UIProcess/WebPageProxy.cpp
>index ac74bd4c7ac4a1305401602d3b276430adb888b8..2607b30034ec97be76a42b0d5a3286f4f3196549 100644
>--- a/Source/WebKit/UIProcess/WebPageProxy.cpp
>+++ b/Source/WebKit/UIProcess/WebPageProxy.cpp
>@@ -704,8 +704,9 @@ void WebPageProxy::handleSynchronousMessage(IPC::Connection& connection, const S
>         return completionHandler({ });
> 
>     RefPtr<API::Object> returnData;
>-    m_injectedBundleClient->didReceiveSynchronousMessageFromInjectedBundle(this, messageName, m_process->transformHandlesToObjects(messageBody.object()).get(), returnData);
>-    completionHandler(UserData(m_process->transformObjectsToHandles(returnData.get())));
>+    m_injectedBundleClient->didReceiveSynchronousMessageFromInjectedBundle(this, messageName, m_process->transformHandlesToObjects(messageBody.object()).get(), [completionHandler = WTFMove(completionHandler), process = m_process.copyRef()] (RefPtr<API::Object>&& returnData) mutable {
>+        completionHandler(UserData(process->transformObjectsToHandles(returnData.get())));
>+    });
> }
> 
> void WebPageProxy::launchProcess(const RegistrableDomain& registrableDomain)
>diff --git a/Source/WebKit/UIProcess/WebPageProxy.h b/Source/WebKit/UIProcess/WebPageProxy.h
>index 35e85f0e351c723824f6fa136e7befd5746229fa..2c540f7c05756ff8dd9468c3439fbd2d1bb9a54a 100644
>--- a/Source/WebKit/UIProcess/WebPageProxy.h
>+++ b/Source/WebKit/UIProcess/WebPageProxy.h
>@@ -497,7 +497,6 @@ public:
>     void setLoaderClient(std::unique_ptr<API::LoaderClient>&&);
>     void setPolicyClient(std::unique_ptr<API::PolicyClient>&&);
>     void setInjectedBundleClient(const WKPageInjectedBundleClientBase*);
>-    WebPageInjectedBundleClient* injectedBundleClient() { return m_injectedBundleClient.get(); }
> 
>     API::UIClient& uiClient() { return *m_uiClient; }
>     void setUIClient(std::unique_ptr<API::UIClient>&&);
>diff --git a/Source/WebKit/UIProcess/WebProcessPool.cpp b/Source/WebKit/UIProcess/WebProcessPool.cpp
>index 7864a183f7d738ded54a90d282a50337fa425535..9462799f2a8bd1a4d76f2d39fc823949d1085797 100644
>--- a/Source/WebKit/UIProcess/WebProcessPool.cpp
>+++ b/Source/WebKit/UIProcess/WebProcessPool.cpp
>@@ -1902,9 +1902,9 @@ void WebProcessPool::handleSynchronousMessage(IPC::Connection& connection, const
>     if (!webProcessProxy)
>         return completionHandler({ });
> 
>-    RefPtr<API::Object> returnData;
>-    m_injectedBundleClient->didReceiveSynchronousMessageFromInjectedBundle(*this, messageName, webProcessProxy->transformHandlesToObjects(messageBody.object()).get(), returnData);
>-    completionHandler(UserData(webProcessProxy->transformObjectsToHandles(returnData.get())));
>+    m_injectedBundleClient->didReceiveSynchronousMessageFromInjectedBundle(*this, messageName, webProcessProxy->transformHandlesToObjects(messageBody.object()).get(), [webProcessProxy = makeRef(*webProcessProxy), completionHandler = WTFMove(completionHandler)] (RefPtr<API::Object>&& returnData) mutable {
>+        completionHandler(UserData(webProcessProxy->transformObjectsToHandles(returnData.get())));
>+    });
> }
> 
> void WebProcessPool::didGetStatistics(const StatisticsData& statisticsData, uint64_t requestID)
>diff --git a/Source/WebKit/WebKit.xcodeproj/project.pbxproj b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>index 1b52263c46db5efa03ee2582791cd96548f9795f..16043c5f596a279a93a39df08ef024523724c411 100644
>--- a/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>+++ b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>@@ -1102,6 +1102,8 @@
> 		5CA26D81217ABD5B00F97A35 /* WKSafeBrowsingWarning.h in Headers */ = {isa = PBXBuildFile; fileRef = 5CA26D80217ABBB600F97A35 /* WKSafeBrowsingWarning.h */; };
> 		5CA26D83217AD1B800F97A35 /* WKSafeBrowsingWarning.mm in Sources */ = {isa = PBXBuildFile; fileRef = 5CA26D7F217ABBB600F97A35 /* WKSafeBrowsingWarning.mm */; };
> 		5CA9854A210BEB640057EB6B /* SafeBrowsingWarning.h in Headers */ = {isa = PBXBuildFile; fileRef = 5CA98549210BEB5A0057EB6B /* SafeBrowsingWarning.h */; };
>+		5CABDC8622C40FDE001EDE8E /* WKMessageListener.h in Headers */ = {isa = PBXBuildFile; fileRef = 5CABDC8522C40FCC001EDE8E /* WKMessageListener.h */; settings = {ATTRIBUTES = (Private, ); }; };
>+		5CABDC8722C40FED001EDE8E /* APIMessageListener.h in Headers */ = {isa = PBXBuildFile; fileRef = 5CABDC8322C40FA7001EDE8E /* APIMessageListener.h */; };
> 		5CADDE05215046BD0067D309 /* WKWebProcess.h in Headers */ = {isa = PBXBuildFile; fileRef = 5C74300E21500492004BFA17 /* WKWebProcess.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		5CAFDE452130846300B1F7E1 /* _WKInspector.h in Headers */ = {isa = PBXBuildFile; fileRef = 5CAFDE422130843500B1F7E1 /* _WKInspector.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		5CAFDE472130846A00B1F7E1 /* _WKInspectorInternal.h in Headers */ = {isa = PBXBuildFile; fileRef = 5CAFDE442130843600B1F7E1 /* _WKInspectorInternal.h */; };
>@@ -3604,6 +3606,9 @@
> 		5CA46E7A21F1A23900CE86B4 /* APIHTTPCookieStoreCocoa.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = APIHTTPCookieStoreCocoa.mm; path = UIProcess/API/Cocoa/APIHTTPCookieStoreCocoa.mm; sourceTree = SOURCE_ROOT; };
> 		5CA98549210BEB5A0057EB6B /* SafeBrowsingWarning.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SafeBrowsingWarning.h; sourceTree = "<group>"; };
> 		5CA9854B210BEB730057EB6B /* SafeBrowsingWarningCocoa.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = SafeBrowsingWarningCocoa.mm; sourceTree = "<group>"; };
>+		5CABDC8322C40FA7001EDE8E /* APIMessageListener.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = APIMessageListener.h; sourceTree = "<group>"; };
>+		5CABDC8422C40FCC001EDE8E /* WKMessageListener.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = WKMessageListener.cpp; sourceTree = "<group>"; };
>+		5CABDC8522C40FCC001EDE8E /* WKMessageListener.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WKMessageListener.h; sourceTree = "<group>"; };
> 		5CADDE0D2151AA010067D309 /* AuthenticationChallengeDisposition.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = AuthenticationChallengeDisposition.h; sourceTree = "<group>"; };
> 		5CAFDE422130843500B1F7E1 /* _WKInspector.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = _WKInspector.h; sourceTree = "<group>"; };
> 		5CAFDE432130843600B1F7E1 /* _WKInspector.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = _WKInspector.mm; sourceTree = "<group>"; };
>@@ -7843,6 +7848,7 @@
> 				31B3628E2141EA4D007BFA53 /* APIInternalDebugFeature.h */,
> 				7CE4D2061A46775700C7F152 /* APILegacyContextHistoryClient.h */,
> 				1A2464F21891E45100234C5B /* APILoaderClient.h */,
>+				5CABDC8322C40FA7001EDE8E /* APIMessageListener.h */,
> 				7CD3A4801A5D02FA009623B8 /* APINavigation.cpp */,
> 				7CD3A4811A5D02FA009623B8 /* APINavigation.h */,
> 				2DF9EEEA1A7836EE00B6CFBE /* APINavigationAction.h */,
>@@ -7946,6 +7952,8 @@
> 				C98C48A81B6FD5B500145103 /* WKMediaSessionFocusManager.h */,
> 				C9CD43991B4B024200239E33 /* WKMediaSessionMetadata.cpp */,
> 				C9CD439A1B4B024200239E33 /* WKMediaSessionMetadata.h */,
>+				5CABDC8422C40FCC001EDE8E /* WKMessageListener.cpp */,
>+				5CABDC8522C40FCC001EDE8E /* WKMessageListener.h */,
> 				C11E1693212B87C500985FF6 /* WKMockDisplay.cpp */,
> 				C11E1692212B87C500985FF6 /* WKMockDisplay.h */,
> 				411A8DDA20DDB6050060D34F /* WKMockMediaDevice.cpp */,
>@@ -9250,6 +9258,7 @@
> 				31B3628F2141EA5D007BFA53 /* APIInternalDebugFeature.h in Headers */,
> 				7CE4D2071A46776100C7F152 /* APILegacyContextHistoryClient.h in Headers */,
> 				1A2464F31891E45100234C5B /* APILoaderClient.h in Headers */,
>+				5CABDC8722C40FED001EDE8E /* APIMessageListener.h in Headers */,
> 				7CD3A4831A5D02FA009623B8 /* APINavigation.h in Headers */,
> 				2DF9EEEC1A7836EE00B6CFBE /* APINavigationAction.h in Headers */,
> 				2DD9EB2D1A6F012500BB1267 /* APINavigationClient.h in Headers */,
>@@ -10099,6 +10108,7 @@
> 				C98C48AA1B6FD5B500145103 /* WKMediaSessionFocusManager.h in Headers */,
> 				C9CD439D1B4B024F00239E33 /* WKMediaSessionMetadata.h in Headers */,
> 				1AB40EE61BF677E300BA81BE /* WKMenuItemIdentifiersPrivate.h in Headers */,
>+				5CABDC8622C40FDE001EDE8E /* WKMessageListener.h in Headers */,
> 				C11E1694212B87C500985FF6 /* WKMockDisplay.h in Headers */,
> 				411A8DDB20DDD1AC0060D34F /* WKMockMediaDevice.h in Headers */,
> 				BC4075FE124FF0270068F20A /* WKMutableArray.h in Headers */,
>diff --git a/Tools/ChangeLog b/Tools/ChangeLog
>index 09ee37039a62009873e10641fd6bc5667fb26374..9a4c7f7d8f34f64f1fd45bbedcbb452bdca55455 100644
>--- a/Tools/ChangeLog
>+++ b/Tools/ChangeLog
>@@ -1,3 +1,26 @@
>+2019-06-26  Alex Christensen  <achristensen@webkit.org>
>+
>+        testRunner.setAlwaysAcceptCookies should wait for cookie accept policy to be set
>+        https://bugs.webkit.org/show_bug.cgi?id=199230
>+        <rdar://51757107>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        * TestWebKitAPI/Tests/WebKit/CookieManager.cpp:
>+        (TestWebKitAPI::didGetTestHTTPCookieAcceptPolicy):
>+        (TestWebKitAPI::didGetUserHTTPCookieAcceptPolicy):
>+        * WebKitTestRunner/TestController.cpp:
>+        (WTR::TestController::generatePageConfiguration):
>+        (WTR::TestController::createWebViewWithOptions):
>+        (WTR::TestController::didReceiveSynchronousMessageFromInjectedBundleWithListener):
>+        (WTR::TestController::didReceiveSynchronousPageMessageFromInjectedBundleWithListener):
>+        (WTR::TestController::didReceiveSynchronousMessageFromInjectedBundle):
>+        (WTR::TestController::didReceiveSynchronousPageMessageFromInjectedBundle): Deleted.
>+        * WebKitTestRunner/TestController.h:
>+        * WebKitTestRunner/TestInvocation.cpp:
>+        (WTR::TestInvocation::invoke):
>+        (WTR::TestInvocation::didReceiveSynchronousMessageFromInjectedBundle):
>+
> 2019-06-25  Jiewen Tan  <jiewen_tan@apple.com>
> 
>         Implement a new SPI to inform clients about AppSSO
>diff --git a/Tools/TestWebKitAPI/Tests/WebKit/CookieManager.cpp b/Tools/TestWebKitAPI/Tests/WebKit/CookieManager.cpp
>index 495d0ed3cd7f1b5a837d8d2988eefbec5c4a3825..840c6c5a06218cd983d618bc7c52d39e8f4f4a6c 100644
>--- a/Tools/TestWebKitAPI/Tests/WebKit/CookieManager.cpp
>+++ b/Tools/TestWebKitAPI/Tests/WebKit/CookieManager.cpp
>@@ -46,7 +46,7 @@ static void didGetTestHTTPCookieAcceptPolicy(WKHTTPCookieAcceptPolicy policy, WK
>     EXPECT_EQ(testPolicy, policy);
> 
>     WKCookieManagerRef cookieManager = WKContextGetCookieManager(wkContext.get());
>-    WKCookieManagerSetHTTPCookieAcceptPolicy(cookieManager, userPolicy);
>+    WKCookieManagerSetHTTPCookieAcceptPolicy(cookieManager, userPolicy, nullptr, nullptr);
> 
>     testDone = true;
> }
>@@ -60,7 +60,7 @@ static void didGetUserHTTPCookieAcceptPolicy(WKHTTPCookieAcceptPolicy policy, WK
>     // Make sure to choose a policy different from the policy the user currently has set.
>     testPolicy = (userPolicy + 1) % 3;
>     WKCookieManagerRef cookieManager = WKContextGetCookieManager(wkContext.get());
>-    WKCookieManagerSetHTTPCookieAcceptPolicy(cookieManager, testPolicy);
>+    WKCookieManagerSetHTTPCookieAcceptPolicy(cookieManager, testPolicy, nullptr, nullptr);
>     WKCookieManagerGetHTTPCookieAcceptPolicy(cookieManager, reinterpret_cast<void*>(0x1234578), didGetTestHTTPCookieAcceptPolicy);
> }
> 
>diff --git a/Tools/WebKitTestRunner/TestController.cpp b/Tools/WebKitTestRunner/TestController.cpp
>index cd8ef1836a1f4ed39785db7265a2e356453588e1..bfac192334c362e1774a7bedf7727c63c166280b 100644
>--- a/Tools/WebKitTestRunner/TestController.cpp
>+++ b/Tools/WebKitTestRunner/TestController.cpp
>@@ -43,6 +43,7 @@
> #include <WebKit/WKFrameHandleRef.h>
> #include <WebKit/WKFrameInfoRef.h>
> #include <WebKit/WKIconDatabase.h>
>+#include <WebKit/WKMessageListener.h>
> #include <WebKit/WKMockDisplay.h>
> #include <WebKit/WKMockMediaDevice.h>
> #include <WebKit/WKNavigationActionRef.h>
>@@ -73,6 +74,7 @@
> #include <stdlib.h>
> #include <string>
> #include <wtf/AutodrainedPool.h>
>+#include <wtf/CompletionHandler.h>
> #include <wtf/CryptographicallyRandomNumber.h>
> #include <wtf/MainThread.h>
> #include <wtf/ProcessPrivilege.h>
>@@ -538,11 +540,12 @@ WKRetainPtr<WKPageConfigurationRef> TestController::generatePageConfiguration(co
>         platformInitializeContext();
>     }
> 
>-    WKContextInjectedBundleClientV1 injectedBundleClient = {
>-        { 1, this },
>+    WKContextInjectedBundleClientV2 injectedBundleClient = {
>+        { 2, this },
>         didReceiveMessageFromInjectedBundle,
>-        didReceiveSynchronousMessageFromInjectedBundle,
>+        nullptr,
>         getInjectedBundleInitializationUserData,
>+        didReceiveSynchronousMessageFromInjectedBundleWithListener,
>     };
>     WKContextSetInjectedBundleClient(m_context.get(), &injectedBundleClient.base);
> 
>@@ -717,10 +720,11 @@ void TestController::createWebViewWithOptions(const TestOptions& options)
>     WKContextSetDownloadClient(context(), &downloadClient.base);
>     
>     // this should just be done on the page?
>-    WKPageInjectedBundleClientV0 injectedBundleClient = {
>-        { 0, this },
>+    WKPageInjectedBundleClientV1 injectedBundleClient = {
>+        { 1, this },
>         didReceivePageMessageFromInjectedBundle,
>-        didReceiveSynchronousPageMessageFromInjectedBundle
>+        nullptr,
>+        didReceiveSynchronousPageMessageFromInjectedBundleWithListener,
>     };
>     WKPageSetPageInjectedBundleClient(m_mainWebView->page(), &injectedBundleClient.base);
> 
>@@ -1729,9 +1733,9 @@ void TestController::didReceiveMessageFromInjectedBundle(WKContextRef context, W
>     static_cast<TestController*>(const_cast<void*>(clientInfo))->didReceiveMessageFromInjectedBundle(messageName, messageBody);
> }
> 
>-void TestController::didReceiveSynchronousMessageFromInjectedBundle(WKContextRef context, WKStringRef messageName, WKTypeRef messageBody, WKTypeRef* returnData, const void* clientInfo)
>+void TestController::didReceiveSynchronousMessageFromInjectedBundleWithListener(WKContextRef context, WKStringRef messageName, WKTypeRef messageBody, WKMessageListenerRef listener, const void* clientInfo)
> {
>-    *returnData = static_cast<TestController*>(const_cast<void*>(clientInfo))->didReceiveSynchronousMessageFromInjectedBundle(messageName, messageBody).leakRef();
>+    static_cast<TestController*>(const_cast<void*>(clientInfo))->didReceiveSynchronousMessageFromInjectedBundle(messageName, messageBody, listener);
> }
> 
> WKTypeRef TestController::getInjectedBundleInitializationUserData(WKContextRef, const void* clientInfo)
>@@ -1746,9 +1750,9 @@ void TestController::didReceivePageMessageFromInjectedBundle(WKPageRef page, WKS
>     static_cast<TestController*>(const_cast<void*>(clientInfo))->didReceiveMessageFromInjectedBundle(messageName, messageBody);
> }
> 
>-void TestController::didReceiveSynchronousPageMessageFromInjectedBundle(WKPageRef page, WKStringRef messageName, WKTypeRef messageBody, WKTypeRef* returnData, const void* clientInfo)
>+void TestController::didReceiveSynchronousPageMessageFromInjectedBundleWithListener(WKPageRef page, WKStringRef messageName, WKTypeRef messageBody, WKMessageListenerRef listener, const void* clientInfo)
> {
>-    *returnData = static_cast<TestController*>(const_cast<void*>(clientInfo))->didReceiveSynchronousMessageFromInjectedBundle(messageName, messageBody).leakRef();
>+    static_cast<TestController*>(const_cast<void*>(clientInfo))->didReceiveSynchronousMessageFromInjectedBundle(messageName, messageBody, listener);
> }
> 
> void TestController::networkProcessDidCrash(WKContextRef context, const void *clientInfo)
>@@ -1885,11 +1889,15 @@ void TestController::didReceiveMessageFromInjectedBundle(WKStringRef messageName
>     m_currentInvocation->didReceiveMessageFromInjectedBundle(messageName, messageBody);
> }
> 
>-WKRetainPtr<WKTypeRef> TestController::didReceiveSynchronousMessageFromInjectedBundle(WKStringRef messageName, WKTypeRef messageBody)
>+void TestController::didReceiveSynchronousMessageFromInjectedBundle(WKStringRef messageName, WKTypeRef messageBody, WKMessageListenerRef listener)
> {
>+    auto completionHandler = [listener = retainWK(listener)] (WKTypeRef reply) {
>+        WKMessageListenerSendReply(listener.get(), reply);
>+    };
>+
>     if (WKStringIsEqualToUTF8CString(messageName, "EventSender")) {
>         if (m_state != RunningTest)
>-            return nullptr;
>+            return completionHandler(nullptr);
> 
>         ASSERT(WKGetTypeID(messageBody) == WKDictionaryGetTypeID());
>         WKDictionaryRef messageBodyDictionary = static_cast<WKDictionaryRef>(messageBody);
>@@ -1900,7 +1908,7 @@ WKRetainPtr<WKTypeRef> TestController::didReceiveSynchronousMessageFromInjectedB
>         if (WKStringIsEqualToUTF8CString(subMessageName, "KeyDown")) {
>             didReceiveKeyDownMessageFromInjectedBundle(messageBodyDictionary, true);
> 
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "MouseDown") || WKStringIsEqualToUTF8CString(subMessageName, "MouseUp")) {
>@@ -1915,7 +1923,7 @@ WKRetainPtr<WKTypeRef> TestController::didReceiveSynchronousMessageFromInjectedB
>                 m_eventSenderProxy->mouseDown(button, modifiers);
>             else
>                 m_eventSenderProxy->mouseUp(button, modifiers);
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "MouseMoveTo")) {
>@@ -1927,28 +1935,28 @@ WKRetainPtr<WKTypeRef> TestController::didReceiveSynchronousMessageFromInjectedB
> 
>             // Forward to WebProcess
>             m_eventSenderProxy->mouseMoveTo(x, y);
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
> #if PLATFORM(MAC)
>         if (WKStringIsEqualToUTF8CString(subMessageName, "MouseForceClick")) {
>             m_eventSenderProxy->mouseForceClick();
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "StartAndCancelMouseForceClick")) {
>             m_eventSenderProxy->startAndCancelMouseForceClick();
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "MouseForceDown")) {
>             m_eventSenderProxy->mouseForceDown();
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "MouseForceUp")) {
>             m_eventSenderProxy->mouseForceUp();
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "MouseForceChanged")) {
>@@ -1956,7 +1964,7 @@ WKRetainPtr<WKTypeRef> TestController::didReceiveSynchronousMessageFromInjectedB
>             double force = WKDoubleGetValue(static_cast<WKDoubleRef>(WKDictionaryGetItemForKey(messageBodyDictionary, forceKey.get())));
> 
>             m_eventSenderProxy->mouseForceChanged(force);
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> #endif // PLATFORM(MAC)
> 
>@@ -1972,7 +1980,7 @@ WKRetainPtr<WKTypeRef> TestController::didReceiveSynchronousMessageFromInjectedB
> 
>             // Forward to WebProcess
>             m_eventSenderProxy->continuousMouseScrollBy(x, y, paged);
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "LeapForward")) {
>@@ -1980,7 +1988,7 @@ WKRetainPtr<WKTypeRef> TestController::didReceiveSynchronousMessageFromInjectedB
>             unsigned time = static_cast<unsigned>(WKUInt64GetValue(static_cast<WKUInt64Ref>(WKDictionaryGetItemForKey(messageBodyDictionary, timeKey.get()))));
> 
>             m_eventSenderProxy->leapForward(time);
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
> #if ENABLE(TOUCH_EVENTS)
>@@ -1992,7 +2000,7 @@ WKRetainPtr<WKTypeRef> TestController::didReceiveSynchronousMessageFromInjectedB
>             int y = static_cast<int>(WKUInt64GetValue(static_cast<WKUInt64Ref>(WKDictionaryGetItemForKey(messageBodyDictionary, yKey.get()))));
> 
>             m_eventSenderProxy->addTouchPoint(x, y);
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "UpdateTouchPoint")) {
>@@ -2006,7 +2014,7 @@ WKRetainPtr<WKTypeRef> TestController::didReceiveSynchronousMessageFromInjectedB
>             int y = static_cast<int>(WKUInt64GetValue(static_cast<WKUInt64Ref>(WKDictionaryGetItemForKey(messageBodyDictionary, yKey.get()))));
> 
>             m_eventSenderProxy->updateTouchPoint(index, x, y);
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "SetTouchModifier")) {
>@@ -2017,7 +2025,7 @@ WKRetainPtr<WKTypeRef> TestController::didReceiveSynchronousMessageFromInjectedB
>             bool enable = static_cast<bool>(WKUInt64GetValue(static_cast<WKUInt64Ref>(WKDictionaryGetItemForKey(messageBodyDictionary, enableKey.get()))));
> 
>             m_eventSenderProxy->setTouchModifier(modifier, enable);
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "SetTouchPointRadius")) {
>@@ -2028,51 +2036,73 @@ WKRetainPtr<WKTypeRef> TestController::didReceiveSynchronousMessageFromInjectedB
>             int y = static_cast<int>(WKUInt64GetValue(static_cast<WKUInt64Ref>(WKDictionaryGetItemForKey(messageBodyDictionary, yKey.get()))));
> 
>             m_eventSenderProxy->setTouchPointRadius(x, y);
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "TouchStart")) {
>             m_eventSenderProxy->touchStart();
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "TouchMove")) {
>             m_eventSenderProxy->touchMove();
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "TouchEnd")) {
>             m_eventSenderProxy->touchEnd();
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "TouchCancel")) {
>             m_eventSenderProxy->touchCancel();
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "ClearTouchPoints")) {
>             m_eventSenderProxy->clearTouchPoints();
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "ReleaseTouchPoint")) {
>             WKRetainPtr<WKStringRef> indexKey = adoptWK(WKStringCreateWithUTF8CString("Index"));
>             int index = static_cast<int>(WKUInt64GetValue(static_cast<WKUInt64Ref>(WKDictionaryGetItemForKey(messageBodyDictionary, indexKey.get()))));
>             m_eventSenderProxy->releaseTouchPoint(index);
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> 
>         if (WKStringIsEqualToUTF8CString(subMessageName, "CancelTouchPoint")) {
>             WKRetainPtr<WKStringRef> indexKey = adoptWK(WKStringCreateWithUTF8CString("Index"));
>             int index = static_cast<int>(WKUInt64GetValue(static_cast<WKUInt64Ref>(WKDictionaryGetItemForKey(messageBodyDictionary, indexKey.get()))));
>             m_eventSenderProxy->cancelTouchPoint(index);
>-            return 0;
>+            return completionHandler(nullptr);
>         }
> #endif
>         ASSERT_NOT_REACHED();
>     }
>-    return m_currentInvocation->didReceiveSynchronousMessageFromInjectedBundle(messageName, messageBody);
>+
>+    auto setHTTPCookieAcceptPolicy = [&] (WKHTTPCookieAcceptPolicy policy, CompletionHandler<void(WKTypeRef)>&& completionHandler) {
>+        auto context = new CompletionHandler<void(WKTypeRef)>(WTFMove(completionHandler));
>+        WKCookieManagerSetHTTPCookieAcceptPolicy(WKContextGetCookieManager(this->context()), policy, context, [] (WKErrorRef error, void* context) {
>+            auto completionHandlerPointer = static_cast<CompletionHandler<void(WKTypeRef)>*>(context);
>+            (*completionHandlerPointer)(nullptr);
>+            delete completionHandlerPointer;
>+        });
>+    };
>+
>+    if (WKStringIsEqualToUTF8CString(messageName, "SetAlwaysAcceptCookies")) {
>+        WKBooleanRef accept = static_cast<WKBooleanRef>(messageBody);
>+        WKHTTPCookieAcceptPolicy policy = WKBooleanGetValue(accept) ? kWKHTTPCookieAcceptPolicyAlways : kWKHTTPCookieAcceptPolicyOnlyFromMainDocumentDomain;
>+        return setHTTPCookieAcceptPolicy(policy, WTFMove(completionHandler));
>+    }
>+
>+    if (WKStringIsEqualToUTF8CString(messageName, "SetOnlyAcceptFirstPartyCookies")) {
>+        WKBooleanRef accept = static_cast<WKBooleanRef>(messageBody);
>+        WKHTTPCookieAcceptPolicy policy = WKBooleanGetValue(accept) ? kWKHTTPCookieAcceptPolicyExclusivelyFromMainDocumentDomain : kWKHTTPCookieAcceptPolicyOnlyFromMainDocumentDomain;
>+        return setHTTPCookieAcceptPolicy(policy, WTFMove(completionHandler));
>+    }
>+
>+    completionHandler(m_currentInvocation->didReceiveSynchronousMessageFromInjectedBundle(messageName, messageBody).get());
> }
> 
> WKRetainPtr<WKTypeRef> TestController::getInjectedBundleInitializationUserData()
>diff --git a/Tools/WebKitTestRunner/TestController.h b/Tools/WebKitTestRunner/TestController.h
>index 1db308d3139e4cbc349e5513f2c9ddfc7c8cfe9d..b04e582d82d6da421660c8a75cfbb661d46931fa 100644
>--- a/Tools/WebKitTestRunner/TestController.h
>+++ b/Tools/WebKitTestRunner/TestController.h
>@@ -377,14 +377,14 @@ private:
> 
>     // WKContextInjectedBundleClient
>     static void didReceiveMessageFromInjectedBundle(WKContextRef, WKStringRef messageName, WKTypeRef messageBody, const void*);
>-    static void didReceiveSynchronousMessageFromInjectedBundle(WKContextRef, WKStringRef messageName, WKTypeRef messageBody, WKTypeRef* returnData, const void*);
>+    static void didReceiveSynchronousMessageFromInjectedBundleWithListener(WKContextRef, WKStringRef messageName, WKTypeRef messageBody, WKMessageListenerRef, const void*);
>     static WKTypeRef getInjectedBundleInitializationUserData(WKContextRef, const void *clientInfo);
> 
>     // WKPageInjectedBundleClient
>     static void didReceivePageMessageFromInjectedBundle(WKPageRef, WKStringRef messageName, WKTypeRef messageBody, const void*);
>-    static void didReceiveSynchronousPageMessageFromInjectedBundle(WKPageRef, WKStringRef messageName, WKTypeRef messageBody, WKTypeRef* returnData, const void*);
>+    static void didReceiveSynchronousPageMessageFromInjectedBundleWithListener(WKPageRef, WKStringRef messageName, WKTypeRef messageBody, WKMessageListenerRef, const void*);
>     void didReceiveMessageFromInjectedBundle(WKStringRef messageName, WKTypeRef messageBody);
>-    WKRetainPtr<WKTypeRef> didReceiveSynchronousMessageFromInjectedBundle(WKStringRef messageName, WKTypeRef messageBody);
>+    void didReceiveSynchronousMessageFromInjectedBundle(WKStringRef messageName, WKTypeRef messageBody, WKMessageListenerRef);
>     WKRetainPtr<WKTypeRef> getInjectedBundleInitializationUserData();
> 
>     void didReceiveKeyDownMessageFromInjectedBundle(WKDictionaryRef messageBodyDictionary, bool synchronous);
>diff --git a/Tools/WebKitTestRunner/TestInvocation.cpp b/Tools/WebKitTestRunner/TestInvocation.cpp
>index ccaf10316ce7b9543d578a595cd33820a63e6948..c4d77b8593a0cc7a6cadd9b26fe10c26f966740e 100644
>--- a/Tools/WebKitTestRunner/TestInvocation.cpp
>+++ b/Tools/WebKitTestRunner/TestInvocation.cpp
>@@ -164,7 +164,7 @@ void TestInvocation::invoke()
> 
>     TestController::singleton().setShouldLogHistoryClientCallbacks(shouldLogHistoryClientCallbacks());
> 
>-    WKCookieManagerSetHTTPCookieAcceptPolicy(WKContextGetCookieManager(TestController::singleton().context()), kWKHTTPCookieAcceptPolicyOnlyFromMainDocumentDomain);
>+    WKCookieManagerSetHTTPCookieAcceptPolicy(WKContextGetCookieManager(TestController::singleton().context()), kWKHTTPCookieAcceptPolicyOnlyFromMainDocumentDomain, nullptr, nullptr);
> 
>     // FIXME: We should clear out visited links here.
> 
>@@ -904,22 +904,6 @@ WKRetainPtr<WKTypeRef> TestInvocation::didReceiveSynchronousMessageFromInjectedB
>         return result;
>     }
> 
>-    if (WKStringIsEqualToUTF8CString(messageName, "SetAlwaysAcceptCookies")) {
>-        WKBooleanRef accept = static_cast<WKBooleanRef>(messageBody);
>-        WKHTTPCookieAcceptPolicy policy = WKBooleanGetValue(accept) ? kWKHTTPCookieAcceptPolicyAlways : kWKHTTPCookieAcceptPolicyOnlyFromMainDocumentDomain;
>-        // FIXME: This updates the policy in WebProcess and in NetworkProcess asynchronously, which might break some tests' expectations.
>-        WKCookieManagerSetHTTPCookieAcceptPolicy(WKContextGetCookieManager(TestController::singleton().context()), policy);
>-        return nullptr;
>-    }
>-
>-    if (WKStringIsEqualToUTF8CString(messageName, "SetOnlyAcceptFirstPartyCookies")) {
>-        WKBooleanRef accept = static_cast<WKBooleanRef>(messageBody);
>-        WKHTTPCookieAcceptPolicy policy = WKBooleanGetValue(accept) ? kWKHTTPCookieAcceptPolicyExclusivelyFromMainDocumentDomain : kWKHTTPCookieAcceptPolicyOnlyFromMainDocumentDomain;
>-        // FIXME: This updates the policy in WebProcess and in NetworkProcess asynchronously, which might break some tests' expectations.
>-        WKCookieManagerSetHTTPCookieAcceptPolicy(WKContextGetCookieManager(TestController::singleton().context()), policy);
>-        return nullptr;
>-    }
>-    
>     if (WKStringIsEqualToUTF8CString(messageName, "SetCustomUserAgent")) {
>         WKStringRef userAgent = static_cast<WKStringRef>(messageBody);
>         WKPageSetCustomUserAgent(TestController::singleton().mainWebView()->page(), userAgent);

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Attachments on bug 199230: 372943 | 372948 | 372950 | 372951 | 372958