[Extension ServiceWorkers] Blink: Passing v8::context to extensions dispatcher

public/web/WebServiceWorkerContextClient.h

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #ifndef WebServiceWorkerContextClient_h
 #define WebServiceWorkerContextClient_h
 
 #include "public/platform/WebMessagePortChannel.h"
 #include "public/platform/WebServiceWorkerClientsClaimCallbacks.h"
 #include "public/platform/WebServiceWorkerClientsInfo.h"
 #include "public/platform/WebServiceWorkerEventResult.h"
 #include "public/platform/WebServiceWorkerSkipWaitingCallbacks.h"
 #include "public/platform/WebURL.h"
+#include <v8.h>
 
 namespace blink {
 
 struct WebCrossOriginServiceWorkerClient;
 struct WebServiceWorkerClientQueryOptions;
 class WebDataSource;
 class WebServiceWorkerContextProxy;
 class WebServiceWorkerNetworkProvider;
 class WebServiceWorkerProvider;
 class WebServiceWorkerResponse;
@@ skipping 35 matching lines @@
 
     // Starting worker context is failed. This could happen when loading
     // worker script fails, or is asked to terminated before the context starts.
     // This is called on the main thread.
     virtual void workerContextFailedToStart() { }
 
     // Called when the worker script is evaluated. |success| is true if the
     // evaluation completed with no uncaught exception.
     virtual void didEvaluateWorkerScript(bool success) { }
 
+    // Called when the worker context is initialized.
+    virtual void didInitializeWorkerContext(v8::Local<v8::Context> context, const blink::WebURL& url) { }

[dcheng, 2015/08/04 00:27:36]

Is it necessary to plumb |context| through like this? It seems like you could
get to this via |m_workerGlobalScope| (since that is set just a few lines before
this).

+
     // Called when the WorkerGlobalScope had an error or an exception.
     virtual void reportException(const WebString& errorMessage, int lineNumber, int columnNumber, const WebString& sourceURL) { }
 
     // Called when the console message is reported.
     virtual void reportConsoleMessage(int source, int level, const WebString& message, int lineNumber, const WebString& sourceURL) { }
 
     // Inspector related messages.
     virtual void sendDevToolsMessage(int callId, const WebString& message, const WebString& state) { }
 
     // ServiceWorker specific method.
@@ skipping 74 matching lines @@
     // Ownership of the passed callbacks is transferred to the callee, callee
     // should delete the callbacks after calling either onSuccess or onError.
     // WebServiceWorkerClientInfo and WebServiceWorkerError ownerships are
     // passed to the WebServiceWorkerClientsCallbacks implementation.
     virtual void navigate(const WebString& uuid, const WebURL&, WebServiceWorkerClientCallbacks*) { BLINK_ASSERT_NOT_REACHED(); }
 };
 
 } // namespace blink
 
 #endif // WebServiceWorkerContextClient_h