[Background Sync] Add renderer code to interface between JS API and back-end service

content/child/blink_platform_impl.h

 // Copyright 2014 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_BLINK_PLATFORM_IMPL_H_
 #define CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/threading/thread_local_storage.h"
 #include "base/timer/timer.h"
@@ skipping 14 matching lines @@
 #include "content/child/webthemeengine_impl_mac.h"
 #elif defined(OS_ANDROID)
 #include "content/child/webthemeengine_impl_android.h"
 #endif
 
 namespace base {
 class MessageLoop;
 }
 
 namespace content {
+class BackgroundSyncProvider;
 class FlingCurveConfiguration;
 class NotificationDispatcher;
 class PermissionDispatcher;
 class PushDispatcher;
 class ThreadSafeSender;
 class WebBluetoothImpl;
 class WebCryptoImpl;
 class WebGeofencingProviderImpl;
 
 class CONTENT_EXPORT BlinkPlatformImpl
@@ skipping 111 matching lines @@
       const blink::WebSize& cumulative_scroll);
   virtual void didStartWorkerRunLoop();
   virtual void didStopWorkerRunLoop();
   virtual blink::WebCrypto* crypto();
   virtual blink::WebGeofencingProvider* geofencingProvider();
   virtual blink::WebBluetooth* bluetooth();
   virtual blink::WebNotificationManager* notificationManager();
   virtual blink::WebPushProvider* pushProvider();
   virtual blink::WebNavigatorConnectProvider* navigatorConnectProvider();
   virtual blink::WebPermissionClient* permissionClient();
+  virtual blink::WebSyncProvider* backgroundSyncProvider();
 
   void SuspendSharedTimer();
   void ResumeSharedTimer();
   virtual void OnStartSharedTimer(base::TimeDelta delay) {}
 
   WebBluetoothImpl* BluetoothImplForTesting() { return bluetooth_.get(); }
 
   virtual blink::WebString domCodeStringFromEnum(int dom_code);
   virtual int domEnumFromCodeString(const blink::WebString& codeString);
 
@@ skipping 20 matching lines @@
   int shared_timer_suspended_;  // counter
   base::ThreadLocalStorage::Slot current_thread_slot_;
   webcrypto::WebCryptoImpl web_crypto_;
   scoped_ptr<WebGeofencingProviderImpl> geofencing_provider_;
   scoped_ptr<WebBluetoothImpl> bluetooth_;
 
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
   scoped_refptr<NotificationDispatcher> notification_dispatcher_;
   scoped_refptr<PushDispatcher> push_dispatcher_;
   scoped_ptr<PermissionDispatcher> permission_client_;
+  scoped_ptr<BackgroundSyncProvider> sync_provider_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_