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

public/web/modules/serviceworker/WebServiceWorkerContextClient.h

Index: public/web/modules/serviceworker/WebServiceWorkerContextClient.h
diff --git a/public/web/modules/serviceworker/WebServiceWorkerContextClient.h b/public/web/modules/serviceworker/WebServiceWorkerContextClient.h
index 10a586a2fb0f869cd61bc14a8a100eff2e82fd35..b9e40bf078e13c13b55c1499efc87e989a6e3f02 100644
--- a/public/web/modules/serviceworker/WebServiceWorkerContextClient.h
+++ b/public/web/modules/serviceworker/WebServiceWorkerContextClient.h
@@ -37,7 +37,6 @@
 #include "public/platform/WebServiceWorkerEventResult.h"
 #include "public/platform/WebServiceWorkerSkipWaitingCallbacks.h"
 #include "public/platform/WebURL.h"
-#include <v8.h>
 
 namespace blink {
 
@@ -92,9 +91,6 @@
     // 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) { }
 
     // Called when the WorkerGlobalScope had an error or an exception.
     virtual void reportException(const WebString& errorMessage, int lineNumber, int columnNumber, const WebString& sourceURL) { }