Identify service worker version at main resource load time.

content/renderer/service_worker/embedded_worker_context_client.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_CHILD_SERVICE_WORKER_EMBEDDED_WORKER_CLIENT_H_
 #define CONTENT_CHILD_SERVICE_WORKER_EMBEDDED_WORKER_CLIENT_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "ipc/ipc_listener.h"
 #include "third_party/WebKit/public/web/WebServiceWorkerContextClient.h"
 #include "url/gurl.h"
 
 namespace base {
 class MessageLoopProxy;
 class TaskRunner;
 }
 
+namespace blink {
+class WebDataSource;
+}
+
 namespace content {
 
 class ServiceWorkerScriptContext;
 class ThreadSafeSender;
 
 // This class provides access to/from an embedded worker's WorkerGlobalScope.
 // All methods other than the constructor (it's created on the main thread)
+// and didCreateDataSource (which is also created on the main thread)
 // are called on the worker thread.
 //
 // TODO(kinuko): Currently EW/SW separation is made a little hazily.
 // This should implement WebEmbeddedWorkerContextClient
 // or sort of it (which doesn't exist yet) rather than
 // WebServiceWorkerContextClient if we want to separate them more cleanly,
 // or ServiceWorkerScriptContext should be merged into this class
 // if we consider EW == SW script context.
 class EmbeddedWorkerContextClient
     : public blink::WebServiceWorkerContextClient {
  public:
   // Returns a thread-specific client instance.  This does NOT create a
   // new instance.
   static EmbeddedWorkerContextClient* ThreadSpecificInstance();
 
   EmbeddedWorkerContextClient(int embedded_worker_id,
                               int64 service_worker_version_id,
                               const GURL& script_url);
 
   virtual ~EmbeddedWorkerContextClient();
 
+  // Called on the main thread prior to main script resource load time.
+  // fyi: ShadowDoc's WebFrameClient calls this from within it's
+  // didCreateDataSource method.
+  virtual void didCreateDataSource(blink::WebDataSource*);
+
   bool OnMessageReceived(const IPC::Message& msg);
 
   void SendMessageToBrowser(int request_id, const IPC::Message& message);
 
   // WebServiceWorkerContextClient overrides, some of them are just dispatched
   // on to script_context_.
   virtual void workerContextFailedToStart();
   virtual void workerContextStarted(blink::WebServiceWorkerContextProxy* proxy);
   virtual void workerContextDestroyed();
   virtual void didHandleInstallEvent(int request_id);
@@ skipping 20 matching lines @@
   scoped_ptr<ServiceWorkerScriptContext> script_context_;
 
   base::WeakPtrFactory<EmbeddedWorkerContextClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EmbeddedWorkerContextClient);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_SERVICE_WORKER_EMBEDDED_WORKER_CLIENT_H_