service worker scaffolding

content/browser/service_worker/service_worker_dispatcher_host.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_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_
 
+#include "base/memory/weak_ptr.h"
 #include "content/public/browser/browser_message_filter.h"
 
 class GURL;
 
 namespace content {
 
-class ServiceWorkerContext;
+class ServiceWorkerContextCore;
+class ServiceWorkerContextWrapper;
 
 class ServiceWorkerDispatcherHost : public BrowserMessageFilter {
  public:
   ServiceWorkerDispatcherHost(int render_process_id,
-                              ServiceWorkerContext* context);
+                              ServiceWorkerContextWrapper* context_wrapper);
 
   // BrowserIOMessageFilter implementation
+  virtual void OnFilterAdded(IPC::Channel* channel) OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  bool* message_was_ok) OVERRIDE;
 
  protected:
   virtual ~ServiceWorkerDispatcherHost();
 
  private:
   // IPC Message handlers
   void OnRegisterServiceWorker(int32 thread_id,
                                int32 request_id,
                                const GURL& scope,
                                const GURL& script_url);
   void OnUnregisterServiceWorker(int32 thread_id,
                                  int32 request_id,
                                  const GURL& scope);
-  scoped_refptr<ServiceWorkerContext> context_;
+
+  scoped_refptr<ServiceWorkerContextWrapper> context_wrapper_;

[kinuko, 2013/11/07 03:02:59]

Maybe worth adding some comment to note that this wrapper is used only during
initialization alive only until OnFilterAdded() is called?

+  base::WeakPtr<ServiceWorkerContextCore> context_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_