Attachment 347304 Details for Bug 188664 – Patch

[patch] Patch

bug-188664-20180816141830.patch (text/plain), 71.26 KB, created by Andy Estes on 2018-08-16 14:18:31 PDT

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Creator: Andy Estes

Created: 2018-08-16 14:18:31 PDT

Size: 71.26 KB

patch

obsolete

>Subversion Revision: 234783
>diff --git a/Source/WTF/ChangeLog b/Source/WTF/ChangeLog
>index 508d804da95be3ff185b9bd12ae917e71469f580..980ed9f4f632928da0ecb1d55ad81b74df8b52e2 100644
>--- a/Source/WTF/ChangeLog
>+++ b/Source/WTF/ChangeLog
>@@ -1,3 +1,12 @@
>+2018-08-16  Andy Estes  <aestes@apple.com>
>+
>+        [watchOS] Upstream Proximity Networking (nee Wi-Fi Assertions)
>+        https://bugs.webkit.org/show_bug.cgi?id=188664
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        * wtf/FeatureDefines.h: Defined ENABLE_PROXIMITY_NETWORKING to 1 on watchOS.
>+
> 2018-08-10  Ryosuke Niwa  <rniwa@webkit.org>
> 
>         [macOS] Multiple third party apps crash due to the thread safety check in TimerBase::setNextFireTime
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 4e96af3d5102cdf39c3da36698d975ed3e1d0183..07948b552d19156b24a5ea4bc0f30f268b7e1183 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,133 @@
>+2018-08-16  Andy Estes  <aestes@apple.com>
>+
>+        [watchOS] Upstream Proximity Networking (nee Wi-Fi Assertions)
>+        https://bugs.webkit.org/show_bug.cgi?id=188664
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Proximity Networking provides two features for speeding up page loads on watchOS:
>+
>+        1. Binding requests to the Apple Watch's Wi-Fi interface even when the iPhone is in proximity.
>+        2. When Wi-Fi isn't available, preemptively upgrading the Bluetooth link to its fastest data
>+        rate prior to starting page loads.
>+
>+        * Configurations/WebKit.xcconfig:
>+
>+        Added LDFLAGS for Proximity Networking.
>+
>+        * NetworkProcess/NetworkProcess.cpp:
>+        (WebKit::NetworkProcess::NetworkProcess):
>+        (WebKit::NetworkProcess::proximityManager):
>+        * NetworkProcess/NetworkProcess.h:
>+
>+        Added NetworkProximityManager as a supplement.
>+
>+        * NetworkProcess/NetworkProcessCreationParameters.cpp:
>+        (WebKit::NetworkProcessCreationParameters::encode const):
>+        (WebKit::NetworkProcessCreationParameters::decode):
>+        * NetworkProcess/NetworkProcessCreationParameters.h:
>+
>+        Renamed ENABLE(WIFI_ASSERTIONS) to ENABLE(PROXIMITY_NETWORKING).
>+
>+        * NetworkProcess/cocoa/NetworkDataTaskCocoa.h:
>+
>+        Renamed m_wiFiAssertionHolder to m_proximityAssertionToken and changed its type from an
>+        optional WiFiAssertionHolder to an optional NetworkProximityAssertion::Token.
>+
>+        * NetworkProcess/cocoa/NetworkDataTaskCocoa.mm:
>+        (WebKit::NetworkDataTaskCocoa::NetworkDataTaskCocoa):
>+        * NetworkProcess/cocoa/NetworkProcessCocoa.mm:
>+        (WebKit::NetworkProcess::platformInitializeNetworkProcessCocoa):
>+        (WebKit::NetworkProcess::platformPrepareToSuspend):
>+        (WebKit::NetworkProcess::platformProcessDidResume):
>+        (WebKit::NetworkProcess::platformProcessDidTransitionToBackground):
>+        (WebKit::NetworkProcess::platformProcessDidTransitionToForeground):
>+
>+        Changed to use NetworkProximityManager.
>+
>+        * NetworkProcess/cocoa/WiFiAssertionHolder.h: Removed.
>+        * NetworkProcess/cocoa/WiFiAssertionHolder.mm: Removed.
>+        * NetworkProcess/watchos/NetworkProximityAssertion.h: Added.
>+        (WebKit::NetworkProximityAssertion::Token::Token):
>+        (WebKit::NetworkProximityAssertion::Token::~Token):
>+
>+        Added. NetworkDataTasks hold these tokens to keep Bluetooth or Wi-Fi assertions active
>+        during loading. When the last token is destroyed, its associated assertion will be
>+        deactivated.
>+
>+        * NetworkProcess/watchos/NetworkProximityAssertion.mm: Added.
>+        (WebKit::NetworkProximityAssertion::NetworkProximityAssertion):
>+        (WebKit::NetworkProximityAssertion::hold):
>+        (WebKit::NetworkProximityAssertion::release):
>+        (WebKit::NetworkProximityAssertion::resume):
>+        (WebKit::NetworkProximityAssertion::suspend):
>+        (WebKit::NetworkProximityAssertion::suspendNow):
>+        (WebKit::NetworkProximityAssertion::releaseTimerFired):
>+        (WebKit::NetworkProximityAssertion::suspendAfterBackgroundingTimerFired):
>+
>+        Added. NetworkProximityAssertion is the base class for Bluetooth and Wi-Fi assertions. It
>+        manages the logic for holding and releasing assertions as well as responding to network
>+        process backgrounding and suspension.
>+
>+        (WebKit::BluetoothProximityAssertion::BluetoothProximityAssertion):
>+        (WebKit::BluetoothProximityAssertion::suspend):
>+        (WebKit::BluetoothProximityAssertion::holdNow):
>+        (WebKit::BluetoothProximityAssertion::releaseNow):
>+
>+        Added. Holds a Bluetooth assertion by calling -[IDSService setLinkPreferences:].
>+
>+        (WebKit::WiFiProximityAssertion::WiFiProximityAssertion):
>+        (WebKit::WiFiProximityAssertion::holdNow):
>+        (WebKit::WiFiProximityAssertion::releaseNow):
>+
>+        Added. Holds a Wi-Fi assertion by using WiFiManagerClient.
>+
>+        * NetworkProcess/watchos/NetworkProximityManager.h: Added.
>+        * NetworkProcess/watchos/NetworkProximityManager.mm: Added.
>+        (-[WKProximityServiceDelegate setClient:]):
>+        (-[WKProximityServiceDelegate service:devicesChanged:]):
>+        (-[WKProximityServiceDelegate service:nearbyDevicesChanged:]):
>+        (WebKit::NetworkProximityManager::NetworkProximityManager):
>+        (WebKit::NetworkProximityManager::~NetworkProximityManager):
>+        (WebKit::NetworkProximityManager::supplementName):
>+        (WebKit::bindRequestToWiFi):
>+        (WebKit::NetworkProximityManager::applyProperties):
>+        (WebKit::NetworkProximityManager::resume):
>+        (WebKit::NetworkProximityManager::suspend):
>+        (WebKit::NetworkProximityManager::recommendation const):
>+        (WebKit::NetworkProximityManager::processRecommendations):
>+        (WebKit::toProcessID):
>+        (WebKit::NetworkProximityManager::resumeRecommendations):
>+        (WebKit::NetworkProximityManager::suspendRecommendations):
>+        (WebKit::NetworkProximityManager::updateCompanionProximity):
>+        (WebKit::NetworkProximityManager::updateRecommendation):
>+        (WebKit::NetworkProximityManager::initialize):
>+        (WebKit::NetworkProximityManager::devicesChanged):
>+
>+        Added. NetworkProximityManager is a network process supplement that can bind
>+        NetworkDataTasks to Wi-Fi, associate assertions with NetworkDataTasks, check for companion
>+        proximity, ask for proximity network recommendations, and respond to network process
>+        backgrounding and suspending.
>+
>+        * Platform/Logging.h:
>+
>+        Renamed the WiFiAssertions log channel to ProximityNetworking.
>+
>+        * Platform/spi/ios/MobileWiFiSPI.h:
>+        * UIProcess/API/APIProcessPoolConfiguration.cpp:
>+        (API::ProcessPoolConfiguration::copy):
>+        * UIProcess/API/APIProcessPoolConfiguration.h:
>+        * UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm:
>+        * UIProcess/Cocoa/WebProcessPoolCocoa.mm:
>+        (WebKit::WebProcessPool::platformInitializeNetworkProcess):
>+
>+        Renamed ENABLE(WIFI_ASSERTIONS) to ENABLE(PROXIMITY_NETWORKING).
>+
>+        * WebKit.xcodeproj/project.pbxproj:
>+        * config.h:
>+
>+        Removed unused definition of HAVE_MOBILE_WIFI.
>+
> 2018-08-10  David Kilzer  <ddkilzer@apple.com>
> 
>         [Cocoa] WebKit::PlatformPopupMenuData should use member initialization
>diff --git a/Source/WTF/wtf/FeatureDefines.h b/Source/WTF/wtf/FeatureDefines.h
>index c3070ff92c73cbe8e2a29eeccbea0e20df80e331..0d3e7f745d871a246225d46ddb568691bf0d2c78 100644
>--- a/Source/WTF/wtf/FeatureDefines.h
>+++ b/Source/WTF/wtf/FeatureDefines.h
>@@ -180,6 +180,17 @@ the public iOS SDK. See <https://webkit.org/b/179167>. */
> 
> #endif /* PLATFORM(IOS) */
> 
>+/* --------- Apple WATCHOS port --------- */
>+#if PLATFORM(WATCHOS)
>+
>+#if !defined(ENABLE_PROXIMITY_NETWORKING)
>+#if !TARGET_OS_SIMULATOR
>+#define ENABLE_PROXIMITY_NETWORKING 1
>+#endif
>+#endif
>+
>+#endif /* PLATFORM(WATCHOS) */
>+
> /* --------- Apple MAC port (not IOS) --------- */
> #if PLATFORM(MAC)
> 
>diff --git a/Source/WebKit/CMakeLists.txt b/Source/WebKit/CMakeLists.txt
>index 6ab24e2c482e420cfd7c5bf2e76f370c1f52850d..cc76dc35624a6341fac4a28f2a94286a98c747d4 100644
>--- a/Source/WebKit/CMakeLists.txt
>+++ b/Source/WebKit/CMakeLists.txt
>@@ -11,6 +11,7 @@ set(WebKit_INCLUDE_DIRECTORIES
>     "${WEBKIT_DIR}/NetworkProcess/FileAPI"
>     "${WEBKIT_DIR}/NetworkProcess/cache"
>     "${WEBKIT_DIR}/NetworkProcess/capture"
>+    "${WEBKIT_DIR}/NetworkProcess/watchos"
>     "${WEBKIT_DIR}/NetworkProcess/webrtc"
>     "${WEBKIT_DIR}/Platform"
>     "${WEBKIT_DIR}/Platform/IPC"
>diff --git a/Source/WebKit/Configurations/WebKit.xcconfig b/Source/WebKit/Configurations/WebKit.xcconfig
>index a66709f4da08d81eec73488388edabda31181e64..e1ae115e608bf6c74c0e55eb4f5b2bf592a72a6d 100644
>--- a/Source/WebKit/Configurations/WebKit.xcconfig
>+++ b/Source/WebKit/Configurations/WebKit.xcconfig
>@@ -101,6 +101,9 @@ WK_PDFKIT_LDFLAGS_iphonesimulator = $(WK_PDFKIT_LDFLAGS_iphoneos);
> WK_PDFKIT_LDFLAGS_iphoneos[sdk=iphone*11.*] = ;
> WK_PDFKIT_LDFLAGS_iphonesimulator[sdk=iphone*11.*] = ;
> 
>+WK_PROXIMITY_NETWORKING_LDFLAGS = $(WK_PROXIMITY_NETWORKING_LDFLAGS_$(WK_PLATFORM_NAME));
>+WK_PROXIMITY_NETWORKING_LDFLAGS_watchos = -framework IDS -framework MobileWiFi -framework SystemConfiguration -framework WirelessCoexManager;
>+
> WK_SAFE_BROWSING_LDFLAGS = $(WK_SAFE_BROWSING_LDFLAGS_$(WK_PLATFORM_NAME));
> WK_SAFE_BROWSING_LDFLAGS_iphoneos = -framework SafariSafeBrowsing;
> WK_SAFE_BROWSING_LDFLAGS_iphonesimulator = -framework SafariSafeBrowsing;
>@@ -115,7 +118,7 @@ WK_UIKIT_LDFLAGS_cocoatouch = -framework UIKit;
> WK_URL_FORMATTING_LDFLAGS = $(WK_URL_FORMATTING_LDFLAGS_$(WK_HAVE_URL_FORMATTING));
> WK_URL_FORMATTING_LDFLAGS_YES = -framework URLFormatting;
> 
>-FRAMEWORK_AND_LIBRARY_LDFLAGS = -lobjc -framework CFNetwork -framework CoreAudio -framework CoreFoundation -framework CoreGraphics -framework CoreText -framework Foundation -framework ImageIO -framework IOKit -framework WebKitLegacy -lnetwork $(WK_ACCESSIBILITY_LDFLAGS) $(WK_APPKIT_LDFLAGS) $(WK_ASSERTION_SERVICES_LDFLAGS) $(WK_CARBON_LDFLAGS) $(WK_CORE_PDF_LDFLAGS) $(WK_CORE_PREDICTION_LDFLAGS) $(WK_CORE_SERVICES_LDFLAGS) $(WK_GRAPHICS_SERVICES_LDFLAGS) $(WK_IOSURFACE_LDFLAGS) $(WK_LIBSANDBOX_LDFLAGS) $(WK_LIBWEBRTC_LDFLAGS) $(WK_MOBILE_CORE_SERVICES_LDFLAGS) $(WK_MOBILE_GESTALT_LDFLAGS) $(WK_OPENGL_LDFLAGS) $(WK_PDFKIT_LDFLAGS) $(WK_SAFE_BROWSING_LDFLAGS) $(WK_UIKIT_LDFLAGS) $(WK_URL_FORMATTING_LDFLAGS);
>+FRAMEWORK_AND_LIBRARY_LDFLAGS = -lobjc -framework CFNetwork -framework CoreAudio -framework CoreFoundation -framework CoreGraphics -framework CoreText -framework Foundation -framework ImageIO -framework IOKit -framework WebKitLegacy -lnetwork $(WK_ACCESSIBILITY_LDFLAGS) $(WK_APPKIT_LDFLAGS) $(WK_ASSERTION_SERVICES_LDFLAGS) $(WK_CARBON_LDFLAGS) $(WK_CORE_PDF_LDFLAGS) $(WK_CORE_PREDICTION_LDFLAGS) $(WK_CORE_SERVICES_LDFLAGS) $(WK_GRAPHICS_SERVICES_LDFLAGS) $(WK_IOSURFACE_LDFLAGS) $(WK_LIBSANDBOX_LDFLAGS) $(WK_LIBWEBRTC_LDFLAGS) $(WK_MOBILE_CORE_SERVICES_LDFLAGS) $(WK_MOBILE_GESTALT_LDFLAGS) $(WK_OPENGL_LDFLAGS) $(WK_PDFKIT_LDFLAGS) $(WK_PROXIMITY_NETWORKING_LDFLAGS) $(WK_SAFE_BROWSING_LDFLAGS) $(WK_UIKIT_LDFLAGS) $(WK_URL_FORMATTING_LDFLAGS);
> 
> // Prevent C++ standard library basic_stringstream, operator new, delete and their related exception types from being exported as weak symbols.
> UNEXPORTED_SYMBOL_LDFLAGS = -Wl,-unexported_symbol -Wl,__ZTISt9bad_alloc -Wl,-unexported_symbol -Wl,__ZTISt9exception -Wl,-unexported_symbol -Wl,__ZTSSt9bad_alloc -Wl,-unexported_symbol -Wl,__ZTSSt9exception -Wl,-unexported_symbol -Wl,__ZdlPvS_ -Wl,-unexported_symbol -Wl,__ZnwmPv -Wl,-unexported_symbol -Wl,__Znwm -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC2EOS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC1EOS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEaSEDn -Wl,-unexported_symbol -Wl,__ZNKSt3__18functionIFvN7WebCore12PolicyActionEEEclES2_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEE4swapERS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC1ERKS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC2ERKS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEED1Ev -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEED2Ev -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEaSERKS4_ -Wl,-unexported_symbol -Wl,__ZTVNSt3__117bad_function_callE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE0_NS_13basic_istreamIcS2_EE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE0_NS_14basic_iostreamIcS2_EE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE16_NS_13basic_ostreamIcS2_EE -Wl,-unexported_symbol -Wl,__ZTTNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE -Wl,-unexported_symbol -Wl,__ZTVNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEE -Wl,-unexported_symbol -Wl,__ZTVNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE8_NS_13basic_ostreamIcS2_EE;
>diff --git a/Source/WebKit/NetworkProcess/NetworkProcess.cpp b/Source/WebKit/NetworkProcess/NetworkProcess.cpp
>index 7de800e718a61dc27f47774916b558a977c5705f..ad4f3698084a9609fe3eaf7ecb31dd31e14ecfdf 100644
>--- a/Source/WebKit/NetworkProcess/NetworkProcess.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkProcess.cpp
>@@ -43,6 +43,7 @@
> #include "NetworkProcessCreationParameters.h"
> #include "NetworkProcessPlatformStrategies.h"
> #include "NetworkProcessProxyMessages.h"
>+#include "NetworkProximityManager.h"
> #include "NetworkResourceLoader.h"
> #include "NetworkSession.h"
> #include "PreconnectTask.h"
>@@ -121,6 +122,9 @@ NetworkProcess::NetworkProcess()
> #if ENABLE(LEGACY_CUSTOM_PROTOCOL_MANAGER)
>     addSupplement<LegacyCustomProtocolManager>();
> #endif
>+#if ENABLE(PROXIMITY_NETWORKING)
>+    addSupplement<NetworkProximityManager>();
>+#endif
> 
>     NetworkStateNotifier::singleton().addListener([this](bool isOnLine) {
>         auto webProcessConnections = m_webProcessConnections;
>@@ -148,6 +152,13 @@ DownloadManager& NetworkProcess::downloadManager()
>     return downloadManager;
> }
> 
>+#if ENABLE(PROXIMITY_NETWORKING)
>+NetworkProximityManager& NetworkProcess::proximityManager()
>+{
>+    return *supplement<NetworkProximityManager>();
>+}
>+#endif
>+
> void NetworkProcess::removeNetworkConnectionToWebProcess(NetworkConnectionToWebProcess* connection)
> {
>     size_t vectorIndex = m_webProcessConnections.find(connection);
>diff --git a/Source/WebKit/NetworkProcess/NetworkProcess.h b/Source/WebKit/NetworkProcess/NetworkProcess.h
>index 6ed1eed87efea3800dece9582fb9bc5150e3db76..17e7c953f05110f140ea2ec79c629331767c4e73 100644
>--- a/Source/WebKit/NetworkProcess/NetworkProcess.h
>+++ b/Source/WebKit/NetworkProcess/NetworkProcess.h
>@@ -58,15 +58,15 @@ class URL;
> }
> 
> namespace WebKit {
>+    
>+enum class WebsiteDataFetchOption;
>+enum class WebsiteDataType;
> class AuthenticationManager;
>-#if ENABLE(SERVER_PRECONNECT)
>-class PreconnectTask;
>-#endif
> class NetworkConnectionToWebProcess;
> class NetworkProcessSupplement;
>+class NetworkProximityManager;
> class NetworkResourceLoader;
>-enum class WebsiteDataFetchOption;
>-enum class WebsiteDataType;
>+class PreconnectTask;
> struct NetworkProcessCreationParameters;
> struct WebsiteDataStoreParameters;
> 
>@@ -98,6 +98,9 @@ public:
> 
>     AuthenticationManager& authenticationManager();
>     DownloadManager& downloadManager();
>+#if ENABLE(PROXIMITY_NETWORKING)
>+    NetworkProximityManager& proximityManager();
>+#endif
> 
>     NetworkCache::Cache* cache() { return m_cache.get(); }
> 
>diff --git a/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.cpp b/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.cpp
>index b7ab18600717930355670e9c3c407979a766538e..2ef700682bef3d7c8e81dfe249bd905d36694cf4 100644
>--- a/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.cpp
>@@ -107,7 +107,7 @@ void NetworkProcessCreationParameters::encode(IPC::Encoder& encoder) const
>     encoder << urlSchemesRegisteredAsCORSEnabled;
>     encoder << urlSchemesRegisteredAsCanDisplayOnlyIfCanRequest;
> 
>-#if ENABLE(WIFI_ASSERTIONS)
>+#if ENABLE(PROXIMITY_NETWORKING)
>     encoder << wirelessContextIdentifier;
> #endif
> }
>@@ -251,7 +251,7 @@ bool NetworkProcessCreationParameters::decode(IPC::Decoder& decoder, NetworkProc
>     if (!decoder.decode(result.urlSchemesRegisteredAsCanDisplayOnlyIfCanRequest))
>         return false;
> 
>-#if ENABLE(WIFI_ASSERTIONS)
>+#if ENABLE(PROXIMITY_NETWORKING)
>     if (!decoder.decode(result.wirelessContextIdentifier))
>         return false;
> #endif
>diff --git a/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.h b/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.h
>index 0e9129b39500d40005cf89723f65206c1fcc1b72..dfbec47cc54106a66086a0fdf43e6bc53709fb54 100644
>--- a/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.h
>+++ b/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.h
>@@ -123,7 +123,7 @@ struct NetworkProcessCreationParameters {
>     Vector<String> urlSchemesRegisteredAsCanDisplayOnlyIfCanRequest;
>     Vector<String> urlSchemesRegisteredAsCORSEnabled;
> 
>-#if ENABLE(WIFI_ASSERTIONS)
>+#if ENABLE(PROXIMITY_NETWORKING)
>     unsigned wirelessContextIdentifier { 0 };
> #endif
> };
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h
>index 36aaf73d19c82432dc5fa41b5b476fe27da2d3b9..5e67a780aef61473cb3fa54853ee44e17fdd3dde 100644
>--- a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h
>@@ -28,7 +28,7 @@
> #include "NetworkActivityTracker.h"
> #include "NetworkDataTask.h"
> #include "NetworkLoadParameters.h"
>-#include "WiFiAssertionHolder.h"
>+#include "NetworkProximityAssertion.h"
> #include <WebCore/NetworkLoadMetrics.h>
> #include <wtf/RetainPtr.h>
> 
>@@ -73,11 +73,11 @@ public:
>     uint64_t frameID() const { return m_frameID; };
>     uint64_t pageID() const { return m_pageID; };
> 
>-#if ENABLE(WIFI_ASSERTIONS)
>-    void maybeHoldWiFiAssertion(bool shouldHoldWiFiAssertion)
>+#if ENABLE(PROXIMITY_NETWORKING)
>+    void holdProximityAssertion(NetworkProximityAssertion& assertion)
>     {
>-        ASSERT(!m_wiFiAssertionHolder);
>-        m_wiFiAssertionHolder.emplace(shouldHoldWiFiAssertion);
>+        ASSERT(!m_proximityAssertionToken);
>+        m_proximityAssertionToken.emplace(assertion);
>     }
> #endif
> 
>@@ -106,8 +106,8 @@ private:
>     bool m_hasBeenSetToUseStatelessCookieStorage { false };
> #endif
> 
>-#if ENABLE(WIFI_ASSERTIONS)
>-    std::optional<WiFiAssertionHolder> m_wiFiAssertionHolder;
>+#if ENABLE(PROXIMITY_NETWORKING)
>+    std::optional<NetworkProximityAssertion::Token> m_proximityAssertionToken;
> #endif
> };
> 
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm
>index 822b40d24128922b5f3631efb9067982106b64fd..204b3fa5e9e7ee83b6caf5357611a94b744dc10c 100644
>--- a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm
>@@ -31,6 +31,7 @@
> #import "DownloadProxyMessages.h"
> #import "Logging.h"
> #import "NetworkProcess.h"
>+#import "NetworkProximityManager.h"
> #import "NetworkSessionCocoa.h"
> #import "SessionTracker.h"
> #import "WebCoreArgumentCoders.h"
>@@ -44,10 +45,6 @@
> #import <wtf/ProcessPrivilege.h>
> #import <wtf/text/Base64.h>
> 
>-#if USE(APPLE_INTERNAL_SDK)
>-#import <WebKitAdditions/NetworkDataTaskCocoaAdditions.mm>
>-#endif
>-
> #if (PLATFORM(MAC) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101400) || (PLATFORM(IOS) && __IPHONE_OS_VERSION_MIN_REQUIRED >= 120000)
> @interface NSURLSessionTask (Staging)
> @property (nullable, readwrite, retain) NSURL *_siteForCookies;
>@@ -213,8 +210,8 @@ NetworkDataTaskCocoa::NetworkDataTaskCocoa(NetworkSession& session, NetworkDataT
> 
>     NSURLRequest *nsRequest = request.nsURLRequest(WebCore::HTTPBodyUpdatePolicy::UpdateHTTPBody);
>     applySniffingPoliciesAndBindRequestToInferfaceIfNeeded(nsRequest, shouldContentSniff == WebCore::ContentSniffingPolicy::SniffContent && !url.isLocalFile(), shouldContentEncodingSniff == WebCore::ContentEncodingSniffingPolicy::Sniff);
>-#if ENABLE(WIFI_ASSERTIONS)
>-    applyAdditionalProperties(request, *this, nsRequest);
>+#if ENABLE(PROXIMITY_NETWORKING)
>+    NetworkProcess::singleton().proximityManager().applyProperties(request, *this, nsRequest);
> #endif
> 
>     auto& cocoaSession = static_cast<NetworkSessionCocoa&>(m_session.get());
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkProcessCocoa.mm b/Source/WebKit/NetworkProcess/cocoa/NetworkProcessCocoa.mm
>index 12cf3af0b1026ad0b51c59b4e160ea8b23628ecf..c9348e7418b779d74ab7ec875dd8b14a79483cfe 100644
>--- a/Source/WebKit/NetworkProcess/cocoa/NetworkProcessCocoa.mm
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkProcessCocoa.mm
>@@ -30,6 +30,7 @@
> #import "Logging.h"
> #import "NetworkCache.h"
> #import "NetworkProcessCreationParameters.h"
>+#import "NetworkProximityManager.h"
> #import "NetworkResourceLoader.h"
> #import "NetworkSessionCocoa.h"
> #import "SandboxExtension.h"
>@@ -45,10 +46,6 @@
> #import <wtf/CallbackAggregator.h>
> #import <wtf/ProcessPrivilege.h>
> 
>-#if USE(APPLE_INTERNAL_SDK)
>-#import <WebKitAdditions/NetworkProcessCocoaAdditions.mm>
>-#endif
>-
> namespace WebKit {
> 
> static void initializeNetworkSettings()
>@@ -110,10 +107,6 @@ void NetworkProcess::platformInitializeNetworkProcessCocoa(const NetworkProcessC
> 
>     ASSERT(!m_diskCacheIsDisabledForTesting);
> 
>-#if ENABLE(WIFI_ASSERTIONS)
>-    initializeWiFiAssertions(parameters);
>-#endif
>-
>     if (m_diskCacheDirectory.isNull())
>         return;
> 
>@@ -245,8 +238,8 @@ void NetworkProcess::platformSyncAllCookies(CompletionHandler<void()>&& completi
> 
> void NetworkProcess::platformPrepareToSuspend(CompletionHandler<void()>&& completionHandler)
> {
>-#if ENABLE(WIFI_ASSERTIONS)
>-    suspendWiFiAssertions(SuspensionReason::ProcessSuspending, WTFMove(completionHandler));
>+#if ENABLE(PROXIMITY_NETWORKING)
>+    proximityManager().suspend(SuspensionReason::ProcessSuspending, WTFMove(completionHandler));
> #else
>     completionHandler();
> #endif
>@@ -254,23 +247,23 @@ void NetworkProcess::platformPrepareToSuspend(CompletionHandler<void()>&& comple
> 
> void NetworkProcess::platformProcessDidResume()
> {
>-#if ENABLE(WIFI_ASSERTIONS)
>-    resumeWiFiAssertions(ResumptionReason::ProcessResuming);
>+#if ENABLE(PROXIMITY_NETWORKING)
>+    proximityManager().resume(ResumptionReason::ProcessResuming);
> #endif
> }
> 
> void NetworkProcess::platformProcessDidTransitionToBackground()
> {
>-#if ENABLE(WIFI_ASSERTIONS)
>-    suspendWiFiAssertions(SuspensionReason::ProcessBackgrounding, [] { });
>+#if ENABLE(PROXIMITY_NETWORKING)
>+    proximityManager().suspend(SuspensionReason::ProcessBackgrounding, [] { });
> #endif
> }
> 
> void NetworkProcess::platformProcessDidTransitionToForeground()
> {
>-#if ENABLE(WIFI_ASSERTIONS)
>-    resumeWiFiAssertions(ResumptionReason::ProcessForegrounding);
>+#if ENABLE(PROXIMITY_NETWORKING)
>+    proximityManager().resume(ResumptionReason::ProcessForegrounding);
> #endif
> }
> 
>-}
>+} // namespace WebKit
>diff --git a/Source/WebKit/NetworkProcess/cocoa/WiFiAssertionHolder.h b/Source/WebKit/NetworkProcess/cocoa/WiFiAssertionHolder.h
>deleted file mode 100644
>index b1935c32ff3c6e98663d633d29ea784ed3c2eae9..0000000000000000000000000000000000000000
>--- a/Source/WebKit/NetworkProcess/cocoa/WiFiAssertionHolder.h
>+++ /dev/null
>@@ -1,48 +0,0 @@
>-/*
>- * Copyright (C) 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.
>- */
>-
>-#pragma once
>-
>-#if HAVE(MOBILE_WIFI)
>-
>-#include <wtf/Noncopyable.h>
>-
>-namespace WebKit {
>-
>-class WiFiAssertionHolder {
>-    WTF_MAKE_NONCOPYABLE(WiFiAssertionHolder);
>-public:
>-    explicit WiFiAssertionHolder(bool shouldHoldWiFiAssertion);
>-    ~WiFiAssertionHolder();
>-
>-    bool shouldHoldWiFiAssertion() const { return m_shouldHoldWiFiAssertion; }
>-
>-private:
>-    bool m_shouldHoldWiFiAssertion;
>-};
>-
>-} // namespace WebKit
>-
>-#endif // HAVE(MOBILE_WIFI)
>diff --git a/Source/WebKit/NetworkProcess/cocoa/WiFiAssertionHolder.mm b/Source/WebKit/NetworkProcess/cocoa/WiFiAssertionHolder.mm
>deleted file mode 100644
>index a6b3379cf87b02ef27557d45ad87059ea337823d..0000000000000000000000000000000000000000
>--- a/Source/WebKit/NetworkProcess/cocoa/WiFiAssertionHolder.mm
>+++ /dev/null
>@@ -1,58 +0,0 @@
>-/*
>- * Copyright (C) 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 "WiFiAssertionHolder.h"
>-
>-#if HAVE(MOBILE_WIFI)
>-
>-#if USE(APPLE_INTERNAL_SDK)
>-#import <WebKitAdditions/WiFiAssertionHolderAdditions.mm>
>-#else
>-static void holdWiFiAssertion(const WiFiAssertionHolder&)
>-{
>-}
>-
>-static void releaseWiFiAssertion(const WiFiAssertionHolder&)
>-{
>-}
>-#endif
>-
>-namespace WebKit {
>-
>-WiFiAssertionHolder::WiFiAssertionHolder(bool shouldHoldWiFiAssertion)
>-    : m_shouldHoldWiFiAssertion { shouldHoldWiFiAssertion }
>-{
>-    holdWiFiAssertion(*this);
>-}
>-
>-WiFiAssertionHolder::~WiFiAssertionHolder()
>-{
>-    releaseWiFiAssertion(*this);
>-}
>-
>-} // namespace WebKit
>-
>-#endif // HAVE(MOBILE_WIFI)
>diff --git a/Source/WebKit/NetworkProcess/watchos/NetworkProximityAssertion.h b/Source/WebKit/NetworkProcess/watchos/NetworkProximityAssertion.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..91107124f506aa7950540ba1e9ce970213816f09
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/watchos/NetworkProximityAssertion.h
>@@ -0,0 +1,120 @@
>+/*
>+ * Copyright (C) 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.
>+ */
>+
>+#pragma once
>+
>+#if ENABLE(PROXIMITY_NETWORKING)
>+
>+#include "MobileWiFiSPI.h"
>+#include <WebCore/Timer.h>
>+#include <wtf/Noncopyable.h>
>+#include <wtf/RetainPtr.h>
>+
>+OBJC_CLASS IDSService;
>+
>+namespace WebKit {
>+
>+enum class ResumptionReason : uint8_t;
>+enum class SuspensionReason : uint8_t;
>+
>+class NetworkProximityAssertion {
>+    WTF_MAKE_NONCOPYABLE(NetworkProximityAssertion);
>+public:
>+    class Token {
>+        WTF_MAKE_NONCOPYABLE(Token);
>+    public:
>+        explicit Token(NetworkProximityAssertion& assertion)
>+            : m_assertion { assertion }
>+        {
>+            m_assertion.hold();
>+        }
>+
>+        ~Token()
>+        {
>+            m_assertion.release();
>+        }
>+
>+    private:
>+        NetworkProximityAssertion& m_assertion;
>+    };
>+
>+    void resume(ResumptionReason);
>+    void suspend(SuspensionReason, CompletionHandler<void()>&&);
>+
>+protected:
>+    NetworkProximityAssertion();
>+    virtual ~NetworkProximityAssertion() = default;
>+
>+    bool m_isHoldingAssertion { false };
>+
>+private:
>+    enum class State {
>+        Backgrounded, // Can hold assertions until m_suspendAfterBackgroundingTimer fires.
>+        Resumed, // Can hold assertions at any time.
>+        Suspended, // Can not hold assertions.
>+    };
>+
>+    virtual void holdNow() = 0;
>+    virtual void releaseNow() = 0;
>+
>+    void hold();
>+    void release();
>+    void releaseTimerFired();
>+    void suspendAfterBackgroundingTimerFired();
>+    void suspendNow();
>+
>+    uint64_t m_assertionCount { 0 };
>+    State m_state { State::Suspended };
>+    WebCore::DeferrableOneShotTimer m_releaseTimer;
>+    WebCore::DeferrableOneShotTimer m_suspendAfterBackgroundingTimer;
>+};
>+
>+class BluetoothProximityAssertion final : public NetworkProximityAssertion {
>+public:
>+    explicit BluetoothProximityAssertion(IDSService *);
>+
>+    void suspend(SuspensionReason, CompletionHandler<void()>&&);
>+
>+private:
>+    void holdNow() override;
>+    void releaseNow() override;
>+
>+    RetainPtr<IDSService> m_idsService;
>+};
>+
>+class WiFiProximityAssertion final : public NetworkProximityAssertion {
>+public:
>+    WiFiProximityAssertion();
>+
>+private:
>+    void holdNow() override;
>+    void releaseNow() override;
>+
>+    RetainPtr<WiFiManagerClientRef> m_wiFiManagerClient;
>+};
>+
>+} // namespace WebKit
>+
>+#endif // ENABLE(PROXIMITY_NETWORKING)
>diff --git a/Source/WebKit/NetworkProcess/watchos/NetworkProximityAssertion.mm b/Source/WebKit/NetworkProcess/watchos/NetworkProximityAssertion.mm
>new file mode 100644
>index 0000000000000000000000000000000000000000..1e71c6cde27c11d63c2bd18348987ff7d8071de5
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/watchos/NetworkProximityAssertion.mm
>@@ -0,0 +1,230 @@
>+/*
>+ * Copyright (C) 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 "NetworkProximityAssertion.h"
>+
>+#if ENABLE(PROXIMITY_NETWORKING)
>+
>+#import "Logging.h"
>+#import "NetworkProcess.h"
>+#import "NetworkProximityManager.h"
>+#import <IDS/IDS_Private.h>
>+#import <wtf/BlockPtr.h>
>+
>+namespace WebKit {
>+
>+static auto assertionReleaseDelayAfterBackgrounding = 10_s;
>+static auto assertionReleaseDelayForHysteresis = 10_s;
>+
>+NetworkProximityAssertion::NetworkProximityAssertion()
>+    : m_releaseTimer { *this, &NetworkProximityAssertion::releaseTimerFired, assertionReleaseDelayForHysteresis }
>+    , m_suspendAfterBackgroundingTimer { *this, &NetworkProximityAssertion::suspendAfterBackgroundingTimerFired, assertionReleaseDelayAfterBackgrounding }
>+{
>+}
>+
>+void NetworkProximityAssertion::hold()
>+{
>+    ++m_assertionCount;
>+
>+    if (m_state == State::Suspended) {
>+        ASSERT(!m_isHoldingAssertion);
>+        ASSERT(!m_releaseTimer.isActive());
>+        ASSERT(!m_suspendAfterBackgroundingTimer.isActive());
>+        return;
>+    }
>+
>+    if (m_releaseTimer.isActive()) {
>+        m_releaseTimer.stop();
>+        return;
>+    }
>+
>+    if (m_assertionCount == 1)
>+        holdNow();
>+}
>+
>+void NetworkProximityAssertion::release()
>+{
>+    ASSERT(m_assertionCount);
>+    if (!m_assertionCount || --m_assertionCount)
>+        return;
>+
>+    if (m_state == State::Suspended) {
>+        ASSERT(!m_isHoldingAssertion);
>+        ASSERT(!m_releaseTimer.isActive());
>+        ASSERT(!m_suspendAfterBackgroundingTimer.isActive());
>+        return;
>+    }
>+
>+    m_releaseTimer.restart();
>+}
>+
>+void NetworkProximityAssertion::resume(ResumptionReason)
>+{
>+    switch (m_state) {
>+    case State::Backgrounded:
>+        m_suspendAfterBackgroundingTimer.stop();
>+        break;
>+    case State::Resumed:
>+        ASSERT(!m_suspendAfterBackgroundingTimer.isActive());
>+        break;
>+    case State::Suspended:
>+        ASSERT(!m_isHoldingAssertion);
>+        ASSERT(!m_releaseTimer.isActive());
>+        ASSERT(!m_suspendAfterBackgroundingTimer.isActive());
>+        holdNow();
>+        if (!m_assertionCount)
>+            m_releaseTimer.restart();
>+        break;
>+    }
>+
>+    m_state = State::Resumed;
>+}
>+
>+void NetworkProximityAssertion::suspend(SuspensionReason reason, CompletionHandler<void()>&& completionHandler)
>+{
>+    switch (reason) {
>+    case SuspensionReason::ProcessBackgrounding:
>+        // The Networking process is being backgrounded. We should drop our assertions
>+        // soon, in case the system suspends the process before we receive ProcessSuspending.
>+        m_state = State::Backgrounded;
>+        m_suspendAfterBackgroundingTimer.restart();
>+        break;
>+    case SuspensionReason::ProcessSuspending:
>+        // The Networking process is being suspended, so we need to drop our assertions
>+        // immediately before that happens.
>+        suspendNow();
>+        break;
>+    }
>+
>+    completionHandler();
>+}
>+
>+void NetworkProximityAssertion::suspendNow()
>+{
>+    if (m_state == State::Suspended)
>+        return;
>+
>+    m_state = State::Suspended;
>+    m_releaseTimer.stop();
>+    m_suspendAfterBackgroundingTimer.stop();
>+    releaseNow();
>+}
>+
>+void NetworkProximityAssertion::releaseTimerFired()
>+{
>+    ASSERT(!m_releaseTimer.isActive());
>+    ASSERT(!m_assertionCount);
>+    ASSERT(m_state != State::Suspended);
>+    releaseNow();
>+}
>+
>+void NetworkProximityAssertion::suspendAfterBackgroundingTimerFired()
>+{
>+    ASSERT(!m_suspendAfterBackgroundingTimer.isActive());
>+    ASSERT(m_state != State::Suspended);
>+    suspendNow();
>+}
>+
>+BluetoothProximityAssertion::BluetoothProximityAssertion(IDSService *idsService)
>+    : m_idsService { idsService }
>+{
>+}
>+
>+void BluetoothProximityAssertion::suspend(SuspensionReason reason, CompletionHandler<void()>&& completionHandler)
>+{
>+    auto wasHoldingAssertion = m_isHoldingAssertion;
>+    NetworkProximityAssertion::suspend(reason, [] { });
>+
>+    switch (reason) {
>+    case SuspensionReason::ProcessBackgrounding:
>+        completionHandler();
>+        break;
>+    case SuspensionReason::ProcessSuspending:
>+        ASSERT(!m_isHoldingAssertion);
>+        if (!wasHoldingAssertion) {
>+            completionHandler();
>+            break;
>+        }
>+
>+        // IDS processes -setLinkPreferences: on a background dispatch queue and provides no
>+        // completion handler. If we suspend before IDS finishes setting link preferences, the
>+        // Bluetooth radio might stay in a high power mode, harming battery life. Delay suspension
>+        // by 30 seconds to ensure -setLinkPreferences: always finishes its work.
>+        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 30 * NSEC_PER_SEC), dispatch_get_main_queue(), BlockPtr<void()>::fromCallable(WTFMove(completionHandler)).get());
>+        break;
>+    }
>+}
>+
>+void BluetoothProximityAssertion::holdNow()
>+{
>+    if (m_isHoldingAssertion)
>+        return;
>+
>+    RELEASE_LOG(ProximityNetworking, "Holding Bluetooth Classic assertion.");
>+    [m_idsService setLinkPreferences:@{ IDSLinkPreferenceOptionPacketsPerSecondKey : @(200) }];
>+    m_isHoldingAssertion = true;
>+}
>+
>+void BluetoothProximityAssertion::releaseNow()
>+{
>+    if (!m_isHoldingAssertion)
>+        return;
>+
>+    RELEASE_LOG(ProximityNetworking, "Releasing Bluetooth Classic assertion.");
>+    [m_idsService setLinkPreferences:@{ IDSLinkPreferenceOptionPacketsPerSecondKey : @(0) }];
>+    m_isHoldingAssertion = false;
>+}
>+
>+WiFiProximityAssertion::WiFiProximityAssertion()
>+    : m_wiFiManagerClient { adoptCF(WiFiManagerClientCreate(kCFAllocatorDefault, kWiFiClientTypeNormal)) }
>+{
>+}
>+
>+void WiFiProximityAssertion::holdNow()
>+{
>+    if (m_isHoldingAssertion)
>+        return;
>+
>+    RELEASE_LOG(ProximityNetworking, "Holding Wi-Fi assertion.");
>+    ASSERT(WiFiManagerClientGetType(m_wiFiManagerClient.get()) == kWiFiClientTypeNormal);
>+    WiFiManagerClientSetType(m_wiFiManagerClient.get(), kWiFiClientTypeDirectToCloud);
>+    m_isHoldingAssertion = true;
>+}
>+
>+void WiFiProximityAssertion::releaseNow()
>+{
>+    if (!m_isHoldingAssertion)
>+        return;
>+
>+    RELEASE_LOG(ProximityNetworking, "Releasing Wi-Fi assertion.");
>+    ASSERT(WiFiManagerClientGetType(m_wiFiManagerClient.get()) == kWiFiClientTypeDirectToCloud);
>+    WiFiManagerClientSetType(m_wiFiManagerClient.get(), kWiFiClientTypeNormal);
>+    m_isHoldingAssertion = false;
>+}
>+
>+} // namespace WebKit
>+
>+#endif // ENABLE(PROXIMITY_NETWORKING)
>diff --git a/Source/WebKit/NetworkProcess/watchos/NetworkProximityManager.h b/Source/WebKit/NetworkProcess/watchos/NetworkProximityManager.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..1a703a46e0edc1ef9055c5bc01ad0653052fc138
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/watchos/NetworkProximityManager.h
>@@ -0,0 +1,120 @@
>+/*
>+ * Copyright (C) 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.
>+ */
>+
>+#pragma once
>+
>+#if ENABLE(PROXIMITY_NETWORKING)
>+
>+#include "NetworkProcessSupplement.h"
>+#include "NetworkProximityAssertion.h"
>+#include <wtf/Forward.h>
>+#include <wtf/Noncopyable.h>
>+#include <wtf/OSObjectPtr.h>
>+#include <wtf/RetainPtr.h>
>+
>+OBJC_CLASS IDSService;
>+OBJC_CLASS NSArray;
>+OBJC_CLASS NSURLRequest;
>+OBJC_CLASS WKProximityServiceDelegate;
>+OBJC_CLASS WRM_iRATInterface;
>+
>+namespace WebCore {
>+class ResourceRequest;
>+}
>+
>+namespace WebKit {
>+
>+class ChildProcess;
>+class NetworkDataTaskCocoa;
>+enum class NetworkProximityRecommendation : uint8_t;
>+
>+enum class ResumptionReason : uint8_t {
>+    ProcessForegrounding,
>+    ProcessResuming,
>+};
>+
>+enum class SuspensionReason : uint8_t {
>+    ProcessBackgrounding,
>+    ProcessSuspending
>+};
>+
>+class NetworkProximityServiceClient {
>+public:
>+    virtual ~NetworkProximityServiceClient() = default;
>+    virtual void devicesChanged(NSArray *devices) = 0;
>+};
>+
>+class NetworkProximityManager final : public NetworkProcessSupplement, private NetworkProximityServiceClient {
>+    WTF_MAKE_NONCOPYABLE(NetworkProximityManager);
>+public:
>+    explicit NetworkProximityManager(ChildProcess&);
>+    ~NetworkProximityManager();
>+
>+    static const char* supplementName();
>+
>+    void applyProperties(const WebCore::ResourceRequest&, NetworkDataTaskCocoa&, NSURLRequest *&);
>+    void resume(ResumptionReason);
>+    void suspend(SuspensionReason, CompletionHandler<void()>&&);
>+
>+private:
>+    enum class State {
>+        Backgrounded,
>+        Foregrounded,
>+        Initialized,
>+        Resumed,
>+        Suspended,
>+    };
>+
>+    bool isCompanionInProximity() const { return m_isCompanionInProximity; }
>+    NetworkProximityRecommendation recommendation() const;
>+    bool shouldUseDirectWiFiInProximity() const { return m_shouldUseDirectWiFiInProximity; }
>+
>+    void processRecommendations(NSArray *recommendations);
>+    void resumeRecommendations();
>+    void suspendRecommendations(State oldState);
>+    void updateCompanionProximity();
>+    void updateRecommendation();
>+
>+    // NetworkProcessSupplement
>+    void initialize(const NetworkProcessCreationParameters&) override;
>+
>+    // NetworkProximityServiceClient
>+    void devicesChanged(NSArray *devices) override;
>+
>+    unsigned m_contextIdentifier { 0 };
>+    bool m_isCompanionInProximity { false };
>+    bool m_shouldUseDirectWiFiInProximity { false };
>+    State m_state { State::Initialized };
>+    RetainPtr<WRM_iRATInterface> m_iRATInterface;
>+    RetainPtr<IDSService> m_idsService;
>+    RetainPtr<WKProximityServiceDelegate> m_idsServiceDelegate;
>+    OSObjectPtr<dispatch_queue_t> m_recommendationQueue;
>+    BluetoothProximityAssertion m_bluetoothProximityAssertion;
>+    WiFiProximityAssertion m_wiFiProximityAssertion;
>+};
>+
>+} // namespace WebKit
>+
>+#endif // ENABLE(PROXIMITY_NETWORKING)
>diff --git a/Source/WebKit/NetworkProcess/watchos/NetworkProximityManager.mm b/Source/WebKit/NetworkProcess/watchos/NetworkProximityManager.mm
>new file mode 100644
>index 0000000000000000000000000000000000000000..236d21ab9dac61f9c706e930775ea41beea2b53d
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/watchos/NetworkProximityManager.mm
>@@ -0,0 +1,323 @@
>+/*
>+ * Copyright (C) 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 "NetworkProximityManager.h"
>+
>+#if ENABLE(PROXIMITY_NETWORKING)
>+
>+#import "Logging.h"
>+#import "NetworkDataTaskCocoa.h"
>+#import "NetworkProcessCreationParameters.h"
>+#import <IDS/IDS.h>
>+#import <WirelessCoexManager/WRM_iRATInterface.h>
>+#import <pal/spi/cf/CFNetworkSPI.h>
>+#import <wtf/BlockPtr.h>
>+#import <wtf/CompletionHandler.h>
>+#import <wtf/cf/TypeCastsCF.h>
>+
>+WTF_DECLARE_CF_TYPE_TRAIT(SCNetworkInterface);
>+
>+@interface WKProximityServiceDelegate : NSObject <IDSServiceDelegate>
>+- (void)setClient:(WebKit::NetworkProximityServiceClient*)client;
>+@end
>+
>+@implementation WKProximityServiceDelegate {
>+    WebKit::NetworkProximityServiceClient* _client;
>+}
>+
>+- (void)setClient:(WebKit::NetworkProximityServiceClient*)client
>+{
>+    _client = client;
>+}
>+
>+- (void)service:(IDSService *)service devicesChanged:(NSArray *)devices
>+{
>+    if (_client)
>+        _client->devicesChanged(devices);
>+}
>+
>+- (void)service:(IDSService *)service nearbyDevicesChanged:(NSArray *)devices
>+{
>+    if (_client)
>+        _client->devicesChanged(devices);
>+}
>+
>+@end
>+
>+namespace WebKit {
>+
>+enum class NetworkProximityRecommendation : uint8_t {
>+    Bluetooth,
>+    None,
>+    WiFi,
>+};
>+
>+NetworkProximityManager::NetworkProximityManager(ChildProcess&)
>+    : m_idsService { adoptNS([[IDSService alloc] initWithService:@"com.apple.private.alloy.webkitnetworking"]) }
>+    , m_idsServiceDelegate { adoptNS([[WKProximityServiceDelegate alloc] init]) }
>+    , m_recommendationQueue { adoptOSObject(dispatch_queue_create("WebKit Network Proximity Recommendation Queue", DISPATCH_QUEUE_SERIAL)) }
>+    , m_bluetoothProximityAssertion { m_idsService.get() }
>+{
>+    [m_idsServiceDelegate setClient:this];
>+    [m_idsService addDelegate:m_idsServiceDelegate.get() queue:dispatch_get_main_queue()];
>+}
>+
>+NetworkProximityManager::~NetworkProximityManager()
>+{
>+    [m_idsServiceDelegate setClient:nullptr];
>+}
>+
>+const char* NetworkProximityManager::supplementName()
>+{
>+    return "NetworkProximityManager";
>+}
>+
>+static void bindRequestToWiFi(NSURLRequest *& request)
>+{
>+    static NSString *wiFiInterfaceIdentifier = []() -> NSString * {
>+        auto interfaces = adoptCF(SCNetworkInterfaceCopyAll());
>+        for (CFIndex i = 0, count = CFArrayGetCount(interfaces.get()); i < count; ++i) {
>+            auto interface = checked_cf_cast<SCNetworkInterfaceRef>(CFArrayGetValueAtIndex(interfaces.get(), i));
>+            if (!CFEqual(SCNetworkInterfaceGetInterfaceType(interface), kSCNetworkInterfaceTypeIEEE80211))
>+                continue;
>+
>+            auto identifier = retainPtr(SCNetworkInterfaceGetBSDName(interface));
>+            RELEASE_LOG(ProximityNetworking, "Determined Wi-Fi interface identifier is %@.", identifier.get());
>+            return (NSString *)identifier.leakRef();
>+        }
>+
>+        RELEASE_LOG(ProximityNetworking, "Failed to determine Wi-Fi interface identifier.");
>+        return nil;
>+    }();
>+
>+    if (!wiFiInterfaceIdentifier)
>+        return;
>+
>+    auto mutableRequest = adoptNS([request mutableCopy]);
>+    [mutableRequest setBoundInterfaceIdentifier:wiFiInterfaceIdentifier];
>+    request = mutableRequest.autorelease();
>+}
>+
>+void NetworkProximityManager::applyProperties(const WebCore::ResourceRequest& request, WebKit::NetworkDataTaskCocoa& dataTask, NSURLRequest *& nsRequest)
>+{
>+    // If the client has already bound the request to an identifier, don't override it.
>+    if (nsRequest.boundInterfaceIdentifier.length)
>+        return;
>+
>+    if (dataTask.isTopLevelNavigation())
>+        updateRecommendation();
>+
>+    switch (recommendation()) {
>+    case NetworkProximityRecommendation::Bluetooth:
>+        dataTask.holdProximityAssertion(m_bluetoothProximityAssertion);
>+        break;
>+    case NetworkProximityRecommendation::None:
>+        break;
>+    case NetworkProximityRecommendation::WiFi:
>+        dataTask.holdProximityAssertion(m_wiFiProximityAssertion);
>+        bindRequestToWiFi(nsRequest);
>+        break;
>+    }
>+}
>+
>+void NetworkProximityManager::resume(ResumptionReason reason)
>+{
>+    switch (reason) {
>+    case ResumptionReason::ProcessForegrounding:
>+        m_state = State::Foregrounded;
>+        break;
>+    case ResumptionReason::ProcessResuming:
>+        m_state = State::Resumed;
>+        break;
>+    }
>+
>+    resumeRecommendations();
>+
>+    switch (recommendation()) {
>+    case NetworkProximityRecommendation::Bluetooth:
>+        m_bluetoothProximityAssertion.resume(reason);
>+        break;
>+    case NetworkProximityRecommendation::None:
>+        break;
>+    case NetworkProximityRecommendation::WiFi:
>+        m_wiFiProximityAssertion.resume(reason);
>+        break;
>+    }
>+}
>+
>+void NetworkProximityManager::suspend(SuspensionReason reason, CompletionHandler<void()>&& completionHandler)
>+{
>+    auto oldState = m_state;
>+    switch (reason) {
>+    case SuspensionReason::ProcessBackgrounding:
>+        m_state = State::Backgrounded;
>+        break;
>+    case SuspensionReason::ProcessSuspending:
>+        m_state = State::Suspended;
>+        break;
>+    }
>+
>+    suspendRecommendations(oldState);
>+
>+    auto wrappedCompletionHandler = [this, completionHandler = WTFMove(completionHandler)]() mutable {
>+        completionHandler();
>+        RELEASE_LOG(ProximityNetworking, "Finished suspending NetworkProximityManager (state: %u).", m_state);
>+    };
>+
>+    RELEASE_LOG(ProximityNetworking, "Suspending NetworkProximityManager (state: %u).", m_state);
>+    m_bluetoothProximityAssertion.suspend(reason, WTFMove(wrappedCompletionHandler));
>+    m_wiFiProximityAssertion.suspend(reason, [] { });
>+}
>+
>+NetworkProximityRecommendation NetworkProximityManager::recommendation() const
>+{
>+    if (!isCompanionInProximity())
>+        return NetworkProximityRecommendation::None;
>+
>+    if (shouldUseDirectWiFiInProximity())
>+        return NetworkProximityRecommendation::WiFi;
>+
>+    return NetworkProximityRecommendation::Bluetooth;
>+}
>+
>+void NetworkProximityManager::processRecommendations(NSArray *recommendations)
>+{
>+    m_shouldUseDirectWiFiInProximity = false;
>+    bool didSeeDirectWiFiRecommendation = false;
>+    for (WRM_iRATProximityRecommendation *recommendation in recommendations) {
>+        switch (recommendation.RecommendationType) {
>+        case WRMRecommendationLinkTypeBT:
>+        case WRMRecommendationLinkTypeCompanionWifi:
>+            break;
>+        case WRMRecommendationLinkTypeDirectWifi:
>+            ASSERT(!didSeeDirectWiFiRecommendation);
>+            didSeeDirectWiFiRecommendation = true;
>+            m_shouldUseDirectWiFiInProximity = recommendation.linkRecommendationIsValid && recommendation.linkIsRecommended;
>+            break;
>+        }
>+    }
>+
>+    RELEASE_LOG(ProximityNetworking, "Processed iRATManager recommendations (shouldUseDirectWiFiInProximity: %d).\n", m_shouldUseDirectWiFiInProximity);
>+}
>+
>+static WCMProcessId toProcessID(unsigned contextIdentifier)
>+{
>+    switch (contextIdentifier) {
>+    case WRMWebkit:
>+        return WRMWebkit;
>+    case WRMWebkitMail:
>+        return WRMWebkitMail;
>+    case WRMWebkitNotification:
>+        return WRMWebkitNotification;
>+    default:
>+        return WCMUnknown;
>+    }
>+}
>+
>+void NetworkProximityManager::resumeRecommendations()
>+{
>+    if (m_iRATInterface)
>+        return;
>+
>+    updateCompanionProximity();
>+
>+    auto processID = toProcessID(m_contextIdentifier);
>+    if (processID == WCMUnknown) {
>+        RELEASE_LOG(ProximityNetworking, "Invalid WCM process ID (%d).", m_contextIdentifier);
>+        return;
>+    }
>+
>+    RELEASE_LOG(ProximityNetworking, "Registering with iRATManager (WCM process ID: %d, state: %u).", processID, m_state);
>+    m_iRATInterface = adoptNS([[WRM_iRATInterface alloc] init]);
>+    [m_iRATInterface registerClient:processID queue:m_recommendationQueue.get()];
>+    updateRecommendation();
>+}
>+
>+void NetworkProximityManager::suspendRecommendations(State oldState)
>+{
>+    // If this is not a foreground-to-background transition, avoid unregistering. Page loads can
>+    // often cause the network process to resume, transition to the background, then transition to
>+    // the foreground in rapid succession, causing unnecessary iRATManager registration churn and
>+    // exposing bugs such as <rdar://problem/42560320>.
>+    if (m_state == State::Backgrounded && oldState != State::Foregrounded)
>+        return;
>+
>+    if (!m_iRATInterface)
>+        return;
>+
>+    RELEASE_LOG(ProximityNetworking, "Unregistering with iRATManager (WCM process ID: %d, state: %u).", m_contextIdentifier, m_state);
>+    [m_iRATInterface unregisterClient];
>+    m_iRATInterface = nil;
>+    m_isCompanionInProximity = false;
>+    m_shouldUseDirectWiFiInProximity = false;
>+}
>+
>+void NetworkProximityManager::updateCompanionProximity()
>+{
>+    m_isCompanionInProximity = false;
>+    for (IDSDevice *device in [m_idsService devices]) {
>+        if (device.isDefaultPairedDevice && device.isNearby) {
>+            m_isCompanionInProximity = true;
>+            break;
>+        }
>+    }
>+
>+    RELEASE_LOG(ProximityNetworking, "Determined companion proximity (isCompanionInProximity: %d).", m_isCompanionInProximity);
>+}
>+
>+void NetworkProximityManager::updateRecommendation()
>+{
>+    if (!isCompanionInProximity())
>+        return;
>+
>+    if (!m_iRATInterface)
>+        return;
>+
>+    RELEASE_LOG(ProximityNetworking, "Requesting an immediate recommendation from iRATManager.");
>+
>+    auto semaphore = adoptOSObject(dispatch_semaphore_create(0));
>+    [m_iRATInterface getProximityLinkRecommendation:NO recommendation:[this, semaphore](NSArray<WRM_iRATProximityRecommendation *> *recommendations) {
>+        processRecommendations(recommendations);
>+        dispatch_semaphore_signal(semaphore.get());
>+    }];
>+
>+    dispatch_semaphore_wait(semaphore.get(), dispatch_time(DISPATCH_TIME_NOW, 1 * NSEC_PER_SEC));
>+}
>+
>+void NetworkProximityManager::initialize(const NetworkProcessCreationParameters& parameters)
>+{
>+    m_contextIdentifier = parameters.wirelessContextIdentifier;
>+    resume(ResumptionReason::ProcessResuming);
>+}
>+
>+void NetworkProximityManager::devicesChanged(NSArray *)
>+{
>+    updateCompanionProximity();
>+}
>+
>+} // namespace WebKit
>+
>+#endif // ENABLE(PROXIMITY_NETWORKING)
>diff --git a/Source/WebKit/Platform/Logging.h b/Source/WebKit/Platform/Logging.h
>index da7ca58b124e32017991779d4f87f2ad478a1ad1..9bc3e4f3d11a17016f2f8088282bfe413eb9cf90 100644
>--- a/Source/WebKit/Platform/Logging.h
>+++ b/Source/WebKit/Platform/Logging.h
>@@ -67,6 +67,7 @@ extern "C" {
>     M(Process) \
>     M(ProcessSuspension) \
>     M(ProcessSwapping) \
>+    M(ProximityNetworking) \
>     M(RemoteLayerTree) \
>     M(Resize) \
>     M(ResourceLoadStatistics) \
>@@ -81,7 +82,6 @@ extern "C" {
>     M(VirtualMemory) \
>     M(VisibleRects) \
>     M(WebRTC) \
>-    M(WiFiAssertions) \
> 
> WEBKIT2_LOG_CHANNELS(DECLARE_LOG_CHANNEL)
> 
>diff --git a/Source/WebKit/Platform/spi/ios/MobileWiFiSPI.h b/Source/WebKit/Platform/spi/ios/MobileWiFiSPI.h
>index dbce9d058b19ba0bd07e5a7cf93bcf901cc8ec5c..61b3016fe37698092a8f1bd44f29594beb192e43 100644
>--- a/Source/WebKit/Platform/spi/ios/MobileWiFiSPI.h
>+++ b/Source/WebKit/Platform/spi/ios/MobileWiFiSPI.h
>@@ -27,7 +27,7 @@
> 
> #if USE(APPLE_INTERNAL_SDK)
> 
>-#include <MobileWiFi/WiFiManagerClient.h>
>+#include <MobileWiFi/MobileWiFi.h>
> 
> #else
> 
>diff --git a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp
>index cbae9b9d7ef9857ca0e031ac1c62f1ef6d106d62..af167de4f9a62b37ab06959a78f7499071568b27 100644
>--- a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp
>+++ b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp
>@@ -132,7 +132,7 @@ Ref<ProcessPoolConfiguration> ProcessPoolConfiguration::copy()
>     copy->m_processSwapsOnNavigation = this->m_processSwapsOnNavigation;
>     copy->m_alwaysKeepAndReuseSwappedProcesses = this->m_alwaysKeepAndReuseSwappedProcesses;
>     copy->m_processSwapsOnWindowOpenWithOpener = this->m_processSwapsOnWindowOpenWithOpener;
>-#if ENABLE(WIFI_ASSERTIONS)
>+#if ENABLE(PROXIMITY_NETWORKING)
>     copy->m_wirelessContextIdentifier = this->m_wirelessContextIdentifier;
> #endif
> #if PLATFORM(COCOA)
>diff --git a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h
>index 049c2145629be37f0942e151ef2c92007e4314bd..558722ee0f2191976d664d2cadc6ccb10a3eb63e 100644
>--- a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h
>+++ b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h
>@@ -153,7 +153,7 @@ public:
>     const WTF::String& customWebContentServiceBundleIdentifier() const { return m_customWebContentServiceBundleIdentifier; }
>     void setCustomWebContentServiceBundleIdentifier(const WTF::String& customWebContentServiceBundleIdentifier) { m_customWebContentServiceBundleIdentifier = customWebContentServiceBundleIdentifier; }
> 
>-#if ENABLE(WIFI_ASSERTIONS)
>+#if ENABLE(PROXIMITY_NETWORKING)
>     unsigned wirelessContextIdentifier() const { return m_wirelessContextIdentifier; }
>     void setWirelessContextIdentifier(unsigned wirelessContextIdentifier) { m_wirelessContextIdentifier = wirelessContextIdentifier; }
> #endif
>@@ -205,7 +205,7 @@ private:
>     WTF::String m_ctDataConnectionServiceType;
> #endif
> 
>-#if ENABLE(WIFI_ASSERTIONS)
>+#if ENABLE(PROXIMITY_NETWORKING)
>     unsigned m_wirelessContextIdentifier { 0 };
> #endif
> 
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm b/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm
>index 51b2049703769b5aa05c9b8766f063f8feefbf3e..83fdff1c363eaca54ab4b179be625d187895a862 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm
>+++ b/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm
>@@ -139,7 +139,7 @@ - (void)setAdditionalReadAccessAllowedURLs:(NSArray<NSURL *> *)additionalReadAcc
>     _processPoolConfiguration->setAdditionalReadAccessAllowedPaths(WTFMove(paths));
> }
> 
>-#if ENABLE(WIFI_ASSERTIONS)
>+#if ENABLE(PROXIMITY_NETWORKING)
> - (NSUInteger)wirelessContextIdentifier
> {
>     return _processPoolConfiguration->wirelessContextIdentifier();
>diff --git a/Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm b/Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm
>index ce586dc1355d6a426b4aa12d59b21f70bf70e086..b479f38d6efdc8c4dc03366b555bb3d456a30e6d 100644
>--- a/Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm
>+++ b/Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm
>@@ -333,7 +333,7 @@ void WebProcessPool::platformInitializeNetworkProcess(NetworkProcessCreationPara
>         parameters.recordReplayCacheLocation = parameters.diskCacheDirectory;
> #endif
> 
>-#if ENABLE(WIFI_ASSERTIONS)
>+#if ENABLE(PROXIMITY_NETWORKING)
>     parameters.wirelessContextIdentifier = m_configuration->wirelessContextIdentifier();
> #endif
> }
>diff --git a/Source/WebKit/WebKit.xcodeproj/project.pbxproj b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>index 865ada93556cf343fea7511bd88757b7ec0e3774..0a71d539874cb7693adfcfcb2a711553bbdbe183 100644
>--- a/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>+++ b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>@@ -1593,6 +1593,10 @@
> 		A102A7081EC0EEE900D81D82 /* com.macromedia.Flash Player ESR.plugin.sb in Copy Plug-in Sandbox Profiles */ = {isa = PBXBuildFile; fileRef = 7A5E39491D5BD8A700B4B7CE /* com.macromedia.Flash Player ESR.plugin.sb */; };
> 		A1046EA12079263100F0C5D8 /* WKPDFView.h in Headers */ = {isa = PBXBuildFile; fileRef = A1046E9F2079263100F0C5D8 /* WKPDFView.h */; };
> 		A1046EA22079263100F0C5D8 /* WKPDFView.mm in Sources */ = {isa = PBXBuildFile; fileRef = A1046EA02079263100F0C5D8 /* WKPDFView.mm */; };
>+		A11455AC211FCFCA00CA935B /* NetworkProximityAssertion.h in Headers */ = {isa = PBXBuildFile; fileRef = A11455AA211FCFCA00CA935B /* NetworkProximityAssertion.h */; };
>+		A11455AD211FCFCA00CA935B /* NetworkProximityAssertion.mm in Sources */ = {isa = PBXBuildFile; fileRef = A11455AB211FCFCA00CA935B /* NetworkProximityAssertion.mm */; };
>+		A11455B0211FD25200CA935B /* NetworkProximityManager.h in Headers */ = {isa = PBXBuildFile; fileRef = A11455AE211FD25200CA935B /* NetworkProximityManager.h */; };
>+		A11455B1211FD25200CA935B /* NetworkProximityManager.mm in Sources */ = {isa = PBXBuildFile; fileRef = A11455AF211FD25200CA935B /* NetworkProximityManager.mm */; };
> 		A115DC71191D82D700DA8072 /* _WKWebViewPrintFormatter.mm in Sources */ = {isa = PBXBuildFile; fileRef = A115DC6D191D82AB00DA8072 /* _WKWebViewPrintFormatter.mm */; };
> 		A115DC72191D82DA00DA8072 /* _WKWebViewPrintFormatter.h in Headers */ = {isa = PBXBuildFile; fileRef = A115DC6E191D82AB00DA8072 /* _WKWebViewPrintFormatter.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		A118A9EE1907AD6F00F7C92B /* QuickLookDocumentData.cpp in Sources */ = {isa = PBXBuildFile; fileRef = A118A9EC1907AD6F00F7C92B /* QuickLookDocumentData.cpp */; };
>@@ -1614,8 +1618,6 @@
> 		A1C512C8190656E500448914 /* WebPreviewLoaderClient.cpp in Sources */ = {isa = PBXBuildFile; fileRef = A1C512C6190656E500448914 /* WebPreviewLoaderClient.cpp */; };
> 		A1C512C9190656E500448914 /* WebPreviewLoaderClient.h in Headers */ = {isa = PBXBuildFile; fileRef = A1C512C7190656E500448914 /* WebPreviewLoaderClient.h */; };
> 		A1D420471DB5578500BB6B0D /* WKContextMenuListener.cpp in Sources */ = {isa = PBXBuildFile; fileRef = A1EA02351DABFF7E0096021F /* WKContextMenuListener.cpp */; };
>-		A1DAFDDF207E9B16005E8A52 /* WiFiAssertionHolder.h in Headers */ = {isa = PBXBuildFile; fileRef = A1DAFDDD207E9B16005E8A52 /* WiFiAssertionHolder.h */; };
>-		A1DAFDE0207E9B16005E8A52 /* WiFiAssertionHolder.mm in Sources */ = {isa = PBXBuildFile; fileRef = A1DAFDDE207E9B16005E8A52 /* WiFiAssertionHolder.mm */; };
> 		A1DF631218E0B7C8003A3E2A /* DownloadClient.mm in Sources */ = {isa = PBXBuildFile; fileRef = A1DF631018E0B7C8003A3E2A /* DownloadClient.mm */; };
> 		A1DF631318E0B7C8003A3E2A /* DownloadClient.h in Headers */ = {isa = PBXBuildFile; fileRef = A1DF631118E0B7C8003A3E2A /* DownloadClient.h */; };
> 		A1E688701F6E2BAB007006A6 /* QuarantineSPI.h in Headers */ = {isa = PBXBuildFile; fileRef = A1E6886F1F6E2BAB007006A6 /* QuarantineSPI.h */; };
>@@ -4197,6 +4199,10 @@
> 		9FB5F393169E6A80002C25BF /* WKContextPrivateMac.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = WKContextPrivateMac.h; path = mac/WKContextPrivateMac.h; sourceTree = "<group>"; };
> 		A1046E9F2079263100F0C5D8 /* WKPDFView.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = WKPDFView.h; path = ios/WKPDFView.h; sourceTree = "<group>"; };
> 		A1046EA02079263100F0C5D8 /* WKPDFView.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; name = WKPDFView.mm; path = ios/WKPDFView.mm; sourceTree = "<group>"; };
>+		A11455AA211FCFCA00CA935B /* NetworkProximityAssertion.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = NetworkProximityAssertion.h; sourceTree = "<group>"; };
>+		A11455AB211FCFCA00CA935B /* NetworkProximityAssertion.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = NetworkProximityAssertion.mm; sourceTree = "<group>"; };
>+		A11455AE211FD25200CA935B /* NetworkProximityManager.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = NetworkProximityManager.h; sourceTree = "<group>"; };
>+		A11455AF211FD25200CA935B /* NetworkProximityManager.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = NetworkProximityManager.mm; sourceTree = "<group>"; };
> 		A115DC6D191D82AB00DA8072 /* _WKWebViewPrintFormatter.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = _WKWebViewPrintFormatter.mm; sourceTree = "<group>"; };
> 		A115DC6E191D82AB00DA8072 /* _WKWebViewPrintFormatter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = _WKWebViewPrintFormatter.h; sourceTree = "<group>"; };
> 		A118A9EC1907AD6F00F7C92B /* QuickLookDocumentData.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = QuickLookDocumentData.cpp; path = ios/QuickLookDocumentData.cpp; sourceTree = "<group>"; };
>@@ -4217,8 +4223,6 @@
> 		A1A4FE6018DD54A400B5EA8A /* _WKDownloadDelegate.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = _WKDownloadDelegate.h; sourceTree = "<group>"; };
> 		A1C512C6190656E500448914 /* WebPreviewLoaderClient.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = WebPreviewLoaderClient.cpp; path = ios/WebPreviewLoaderClient.cpp; sourceTree = "<group>"; };
> 		A1C512C7190656E500448914 /* WebPreviewLoaderClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = WebPreviewLoaderClient.h; path = ios/WebPreviewLoaderClient.h; sourceTree = "<group>"; };
>-		A1DAFDDD207E9B16005E8A52 /* WiFiAssertionHolder.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = WiFiAssertionHolder.h; path = NetworkProcess/cocoa/WiFiAssertionHolder.h; sourceTree = "<group>"; };
>-		A1DAFDDE207E9B16005E8A52 /* WiFiAssertionHolder.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; name = WiFiAssertionHolder.mm; path = NetworkProcess/cocoa/WiFiAssertionHolder.mm; sourceTree = "<group>"; };
> 		A1DF631018E0B7C8003A3E2A /* DownloadClient.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = DownloadClient.mm; sourceTree = "<group>"; };
> 		A1DF631118E0B7C8003A3E2A /* DownloadClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DownloadClient.h; sourceTree = "<group>"; };
> 		A1E6886F1F6E2BAB007006A6 /* QuarantineSPI.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = QuarantineSPI.h; sourceTree = "<group>"; };
>@@ -6553,6 +6557,7 @@
> 				E1798C7616E6815500240139 /* FileAPI */,
> 				2DA944BB188511DD00ED86DB /* ios */,
> 				510CC7DC16138E2900D03ED3 /* mac */,
>+				A11455A1211FCE7F00CA935B /* watchos */,
> 				413075971DE84ED70039EC69 /* webrtc */,
> 				53F3CAA5206C443E0086490E /* NetworkActivityTracker.cpp */,
> 				535BCB902069C49C00CCCE02 /* NetworkActivityTracker.h */,
>@@ -7117,8 +7122,6 @@
> 				7EC4F0F918E4A945008056AF /* NetworkProcessCocoa.mm */,
> 				532159501DBAE6D70054AA3C /* NetworkSessionCocoa.h */,
> 				5C20CB9B1BB0DCD200895BB1 /* NetworkSessionCocoa.mm */,
>-				A1DAFDDD207E9B16005E8A52 /* WiFiAssertionHolder.h */,
>-				A1DAFDDE207E9B16005E8A52 /* WiFiAssertionHolder.mm */,
> 			);
> 			name = cocoa;
> 			sourceTree = "<group>";
>@@ -7189,6 +7192,18 @@
> 			path = cocoa;
> 			sourceTree = "<group>";
> 		};
>+		A11455A1211FCE7F00CA935B /* watchos */ = {
>+			isa = PBXGroup;
>+			children = (
>+				A11455AA211FCFCA00CA935B /* NetworkProximityAssertion.h */,
>+				A11455AB211FCFCA00CA935B /* NetworkProximityAssertion.mm */,
>+				A11455AE211FD25200CA935B /* NetworkProximityManager.h */,
>+				A11455AF211FD25200CA935B /* NetworkProximityManager.mm */,
>+			);
>+			name = watchos;
>+			path = NetworkProcess/watchos;
>+			sourceTree = "<group>";
>+		};
> 		A182D5B11BE6BCF40087A7CC /* ios */ = {
> 			isa = PBXGroup;
> 			children = (
>@@ -9256,6 +9271,8 @@
> 				5179556E162877B300FA43B6 /* NetworkProcessProxy.h in Headers */,
> 				513A163D163088F6005D7D22 /* NetworkProcessProxyMessages.h in Headers */,
> 				5C1426EE1C23F80900D41183 /* NetworkProcessSupplement.h in Headers */,
>+				A11455AC211FCFCA00CA935B /* NetworkProximityAssertion.h in Headers */,
>+				A11455B0211FD25200CA935B /* NetworkProximityManager.h in Headers */,
> 				51FD18B61651FBAD00DBE1CE /* NetworkResourceLoader.h in Headers */,
> 				E152551B17011819003D7ADB /* NetworkResourceLoaderMessages.h in Headers */,
> 				5C1426F01C23F80900D41183 /* NetworkResourceLoadParameters.h in Headers */,
>@@ -9644,7 +9661,6 @@
> 				15739BBD1B42042D00D258C1 /* WebUserMediaClient.h in Headers */,
> 				83EE575C1DB7D61100C74C50 /* WebValidationMessageClient.h in Headers */,
> 				2DFC7DBB1BCCC19500C1548C /* WebViewImpl.h in Headers */,
>-				A1DAFDDF207E9B16005E8A52 /* WiFiAssertionHolder.h in Headers */,
> 				29CD55AA128E294F00133C85 /* WKAccessibilityWebPageObjectBase.h in Headers */,
> 				29232DF418B29D6800D0596F /* WKAccessibilityWebPageObjectMac.h in Headers */,
> 				934B724419F5B9BE00AE96D6 /* WKActionMenuItemTypes.h in Headers */,
>@@ -11100,6 +11116,8 @@
> 				E14A954916E016A40068DE82 /* NetworkProcessPlatformStrategies.cpp in Sources */,
> 				5179556D162877B100FA43B6 /* NetworkProcessProxy.cpp in Sources */,
> 				513A163C163088F6005D7D22 /* NetworkProcessProxyMessageReceiver.cpp in Sources */,
>+				A11455AD211FCFCA00CA935B /* NetworkProximityAssertion.mm in Sources */,
>+				A11455B1211FD25200CA935B /* NetworkProximityManager.mm in Sources */,
> 				51FD18B51651FBAD00DBE1CE /* NetworkResourceLoader.cpp in Sources */,
> 				E152551A17011819003D7ADB /* NetworkResourceLoaderMessageReceiver.cpp in Sources */,
> 				5C1426EF1C23F80900D41183 /* NetworkResourceLoadParameters.cpp in Sources */,
>@@ -11588,7 +11606,6 @@
> 				83EE575B1DB7D61100C74C50 /* WebValidationMessageClient.cpp in Sources */,
> 				2DFC7DBC1BCCC19500C1548C /* WebViewImpl.mm in Sources */,
> 				C0337DD1127A2980008FF4F4 /* WebWheelEvent.cpp in Sources */,
>-				A1DAFDE0207E9B16005E8A52 /* WiFiAssertionHolder.mm in Sources */,
> 				868160D0187645570021E79D /* WindowServerConnection.mm in Sources */,
> 				29CD55AB128E294F00133C85 /* WKAccessibilityWebPageObjectBase.mm in Sources */,
> 				29232DF818B2A9AE00D0596F /* WKAccessibilityWebPageObjectIOS.mm in Sources */,
>diff --git a/Source/WebKit/config.h b/Source/WebKit/config.h
>index 63798278cc9e1b2008cfefbbd59a8c9f38b7828f..14cac8418bef990760c0e62dc078fe86b01e108e 100644
>--- a/Source/WebKit/config.h
>+++ b/Source/WebKit/config.h
>@@ -119,14 +119,6 @@
> #endif
> #endif
> 
>-#ifndef HAVE_MOBILE_WIFI
>-#if PLATFORM(IOS) && !TARGET_OS_SIMULATOR && !PLATFORM(IOSMAC) && USE(APPLE_INTERNAL_SDK)
>-#define HAVE_MOBILE_WIFI 1
>-#else
>-#define HAVE_MOBILE_WIFI 0
>-#endif
>-#endif
>-
> #if ((PLATFORM(MAC) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101300) || (PLATFORM(IOS) && __IPHONE_OS_VERSION_MIN_REQUIRED >= 110000)) && !defined(__i386__) && !PLATFORM(IOSMAC)
> #define HAVE_SAFE_BROWSING 1
> #else

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Attachments on bug 188664: 347284 | 347304 | 347310