Change BackgroundSyncContextImpl to use StrongBindingSet.

content/browser/background_sync/background_sync_service_impl.h

 // Copyright 2015 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_BACKGROUND_SYNC_BACKGROUND_SYNC_SERVICE_IMPL_H_
 #define CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_SERVICE_IMPL_H_
 
 #include "base/id_map.h"
-#include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
 #include "content/browser/background_sync/background_sync_manager.h"
 #include "content/common/background_sync_service.mojom.h"
-#include "mojo/public/cpp/bindings/binding.h"
 
 namespace content {
 
-class BackgroundSyncContextImpl;
-
 class CONTENT_EXPORT BackgroundSyncServiceImpl
     : public NON_EXPORTED_BASE(BackgroundSyncService) {
  public:
-  BackgroundSyncServiceImpl(
-      BackgroundSyncContextImpl* background_sync_context,
-      mojo::InterfaceRequest<BackgroundSyncService> request);
+  explicit BackgroundSyncServiceImpl(
+      BackgroundSyncManager* background_sync_manager);
 
   ~BackgroundSyncServiceImpl() override;
 
  private:
   friend class BackgroundSyncServiceImplTest;
 
   // BackgroundSyncService methods:
   void Register(content::SyncRegistrationPtr options,
                 int64_t sw_registration_id,
                 bool requested_from_service_worker,
@@ skipping 26 matching lines @@
   void OnUnregisterResult(const UnregisterCallback& callback,
                           BackgroundSyncStatus status);
   void OnGetRegistrationsResult(
       const GetRegistrationsCallback& callback,
       BackgroundSyncStatus status,
       scoped_ptr<ScopedVector<BackgroundSyncRegistrationHandle>> result);
   void OnNotifyWhenFinishedResult(const NotifyWhenFinishedCallback& callback,
                                   BackgroundSyncStatus status,
                                   BackgroundSyncState sync_state);
 
-  // Called when an error is detected on binding_.
-  void OnConnectionError();
-
-  // background_sync_context_ owns this.
-  BackgroundSyncContextImpl* background_sync_context_;
-
-  mojo::Binding<BackgroundSyncService> binding_;
+  BackgroundSyncManager* const background_sync_manager_;
 
   // The registrations that the client might reference.
   IDMap<BackgroundSyncRegistrationHandle,
         IDMapOwnPointer,
         BackgroundSyncRegistrationHandle::HandleId> active_handles_;
 
   base::WeakPtrFactory<BackgroundSyncServiceImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BackgroundSyncServiceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_SERVICE_IMPL_H_