Initial implementation of stashed message ports, blink side

Source/modules/modules.gypi

 {
   'includes': [
     '../core/core_generated.gypi',
     'modules_generated.gypi',
   ],
   'variables': {
     # Experimental hooks for embedder to provide extra IDL and source files.
     #
     # Note: this is not a supported API. If you rely on this, you will be broken
     # from time to time as the code generator changes in backward incompatible
@@ skipping 151 matching lines @@
       'quota/StorageUsageCallback.idl',
       'screen_orientation/ScreenOrientation.idl',
       'serviceworkers/Client.idl',
       'serviceworkers/Clients.idl',
       'serviceworkers/ExtendableEvent.idl',
       'serviceworkers/FetchEvent.idl',
       'serviceworkers/ServiceWorker.idl',
       'serviceworkers/ServiceWorkerContainer.idl',
       'serviceworkers/ServiceWorkerGlobalScope.idl',
       'serviceworkers/ServiceWorkerRegistration.idl',
+      'serviceworkers/StashedMessagePort.idl',
+      'serviceworkers/StashedPortCollection.idl',
       'serviceworkers/WindowClient.idl',
       'speech/SpeechGrammar.idl',
       'speech/SpeechGrammarList.idl',
       'speech/SpeechRecognition.idl',
       'speech/SpeechRecognitionAlternative.idl',
       'speech/SpeechRecognitionError.idl',
       'speech/SpeechRecognitionEvent.idl',
       'speech/SpeechRecognitionResult.idl',
       'speech/SpeechRecognitionResultList.idl',
       'speech/SpeechSynthesis.idl',
@@ skipping 89 matching lines @@
       'geofencing/WorkerNavigatorGeofencing.idl',
       'geolocation/NavigatorGeolocation.idl',
       'indexeddb/WindowIndexedDatabase.idl',
       'indexeddb/WorkerGlobalScopeIndexedDatabase.idl',
       'mediasource/HTMLVideoElementMediaSource.idl',
       'mediasource/URLMediaSource.idl',
       'mediastream/NavigatorMediaStream.idl',
       'mediastream/URLMediaStream.idl',
       'mediastream/WindowMediaStream.idl',
       'navigatorconnect/NavigatorConnect.idl',
+      'navigatorconnect/ServiceWorkerGlobalScopeNavigatorConnect.idl',
       'navigatorconnect/WorkerNavigatorConnect.idl',
       'navigatorcontentutils/NavigatorContentUtils.idl',
       'netinfo/NavigatorNetworkInformation.idl',
       'netinfo/WorkerNavigatorNetworkInformation.idl',
       'notifications/ServiceWorkerGlobalScopeNotifications.idl',
       'notifications/ServiceWorkerRegistrationNotifications.idl',
       'permissions/NavigatorPermissions.idl',
       'permissions/WorkerNavigatorPermissions.idl',
       'performance/SharedWorkerPerformance.idl',
       'performance/WorkerGlobalScopePerformance.idl',
@@ skipping 822 matching lines @@
       'serviceworkers/ServiceWorkerGlobalScope.cpp',
       'serviceworkers/ServiceWorkerGlobalScope.h',
       'serviceworkers/ServiceWorkerGlobalScopeClient.cpp',
       'serviceworkers/ServiceWorkerGlobalScopeClient.h',
       'serviceworkers/ServiceWorkerRegistration.cpp',
       'serviceworkers/ServiceWorkerRegistration.h',
       'serviceworkers/ServiceWorkerScriptCachedMetadataHandler.cpp',
       'serviceworkers/ServiceWorkerScriptCachedMetadataHandler.h',
       'serviceworkers/ServiceWorkerThread.cpp',
       'serviceworkers/ServiceWorkerThread.h',
+      'serviceworkers/StashedMessagePort.cpp',
+      'serviceworkers/StashedMessagePort.h',
+      'serviceworkers/StashedPortCollection.cpp',
+      'serviceworkers/StashedPortCollection.h',
       'serviceworkers/WaitUntilObserver.cpp',
       'speech/DOMWindowSpeechSynthesis.cpp',
       'speech/DOMWindowSpeechSynthesis.h',
       'speech/SpeechGrammar.cpp',
       'speech/SpeechGrammar.h',
       'speech/SpeechGrammarList.cpp',
       'speech/SpeechGrammarList.h',
       'speech/SpeechRecognition.cpp',
       'speech/SpeechRecognition.h',
       'speech/SpeechRecognitionAlternative.cpp',
@@ skipping 294 matching lines @@
       'webaudio/AudioBasicProcessorHandlerTest.cpp',
       'webaudio/ConvolverNodeTest.cpp',
       'webaudio/DynamicsCompressorNodeTest.cpp',
       'webaudio/ScriptProcessorNodeTest.cpp',
       'webaudio/StereoPannerNodeTest.cpp',
       'websockets/DOMWebSocketTest.cpp',
       'websockets/DocumentWebSocketChannelTest.cpp',
     ],
   },
 }