[Background Sync] Use Mojo IPC to fire background sync events

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 <vector>
 
 #include "base/id_map.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
+#include "content/browser/service_worker/service_worker_mojo_event_dispatcher.h"
 #include "content/browser/service_worker/service_worker_registration_status.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "content/public/browser/browser_message_filter.h"
 
 class GURL;
 struct EmbeddedWorkerHostMsg_ReportConsoleMessage_Params;
 
 namespace content {
 
 class MessagePortMessageFilter;
@@ skipping 167 matching lines @@
                                 ServiceWorkerStatusCode status);
 
   void SendGetRegistrationsError(int thread_id,
                                  int request_id,
                                  ServiceWorkerStatusCode status);
 
   ServiceWorkerContextCore* GetContext();
 
   int render_process_id_;
   MessagePortMessageFilter* const message_port_message_filter_;
+  scoped_ptr<ServiceWorkerMojoEventDispatcher> mojo_event_dispatcher_;
   ResourceContext* resource_context_;
   scoped_refptr<ServiceWorkerContextWrapper> context_wrapper_;
 
   IDMap<ServiceWorkerHandle, IDMapOwnPointer> handles_;
   IDMap<ServiceWorkerRegistrationHandle, IDMapOwnPointer> registration_handles_;
 
   bool channel_ready_;  // True after BrowserMessageFilter::sender_ != NULL.
   ScopedVector<IPC::Message> pending_messages_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_