Expose the ServiceWorker's v8 context to embedders.

Source/web/ServiceWorkerGlobalScopeProxy.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 21 matching lines @@
 #define ServiceWorkerGlobalScopeProxy_h
 
 #include "core/workers/WorkerReportingProxy.h"
 #include "public/platform/WebString.h"
 #include "public/web/WebServiceWorkerContextProxy.h"
 #include "wtf/Forward.h"
 #include "wtf/OwnPtr.h"
 
 namespace WebCore {
 class ExecutionContext;
+class ScriptSourceCode;
 }
 
 namespace blink {
 
 class WebEmbeddedWorkerImpl;
 class WebServiceWorkerContextClient;
 class WebServiceWorkerRequest;
 
 // This class is created and destructed on the main thread, but live most
 // of its time as a resident of the worker thread.
 // All methods other than its ctor/dtor are called on the worker thread.
 //
 // This implements WebServiceWorkerContextProxy, which connects ServiceWorker's
 // WorkerGlobalScope and embedder/chrome, and implements ServiceWorker-specific
 // events/upcall methods that are to be called by embedder/chromium,
 // e.g. onfetch.
 //
 // An instance of this class is supposed to outlive until
 // workerGlobalScopeDestroyed() is called by its corresponding
 // WorkerGlobalScope.
 class ServiceWorkerGlobalScopeProxy FINAL :
     public WebServiceWorkerContextProxy,
     public WebCore::WorkerReportingProxy {
     WTF_MAKE_NONCOPYABLE(ServiceWorkerGlobalScopeProxy);
 public:
     static PassOwnPtr<ServiceWorkerGlobalScopeProxy> create(WebEmbeddedWorkerImpl&, WebCore::ExecutionContext&, WebServiceWorkerContextClient&);
     virtual ~ServiceWorkerGlobalScopeProxy();
 
+    // Evaluates code in the worker's javascript context.  (Can be passed a plain String.)
+    void evaluate(const WebCore::ScriptSourceCode&);

[dominicc (has gone to gerrit), 2014/07/17 02:43:44]

No result?

[Jeffrey Yasskin, 2014/07/17 16:19:32]

Yeah, WorkerScriptController::evaluate() doesn't provide one. I could expose the
error object instead of always passing it to reportException() if you like.

+
     // WebServiceWorkerContextProxy overrides:
     virtual void dispatchActivateEvent(int) OVERRIDE;
     virtual void dispatchInstallEvent(int) OVERRIDE;
     virtual void dispatchFetchEvent(int, const WebServiceWorkerRequest&) OVERRIDE;
     virtual void dispatchMessageEvent(const WebString& message, const WebMessagePortChannelArray&) OVERRIDE;
     virtual void dispatchPushEvent(int, const WebString& data) OVERRIDE;
     virtual void dispatchSyncEvent(int) OVERRIDE;
+    virtual v8::Handle<v8::Context> v8Context() OVERRIDE;
 
     // WorkerReportingProxy overrides:
     virtual void reportException(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL) OVERRIDE;
     virtual void reportConsoleMessage(WebCore::MessageSource, WebCore::MessageLevel, const String& message, int lineNumber, const String& sourceURL) OVERRIDE;
     virtual void postMessageToPageInspector(const String&) OVERRIDE;
     virtual void updateInspectorStateCookie(const String&) OVERRIDE;
     virtual void workerGlobalScopeStarted(WebCore::WorkerGlobalScope*) OVERRIDE;
     virtual void workerGlobalScopeClosed() OVERRIDE;
     virtual void willDestroyWorkerGlobalScope() OVERRIDE;
     virtual void workerGlobalScopeDestroyed() OVERRIDE;
 
 private:
     ServiceWorkerGlobalScopeProxy(WebEmbeddedWorkerImpl&, WebCore::ExecutionContext&, WebServiceWorkerContextClient&);
 
     WebEmbeddedWorkerImpl& m_embeddedWorker;
     WebCore::ExecutionContext& m_executionContext;
 
     WebServiceWorkerContextClient& m_client;
 
     WebCore::WorkerGlobalScope* m_workerGlobalScope;
 };
 
 } // namespace blink
 
 #endif // ServiceWorkerGlobalScopeProxy_h