[BackgroundSync] Remove BackgroundSyncRegistrationHandle

content/child/background_sync/background_sync_provider.cc

 // 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.
 
 #include "content/child/background_sync/background_sync_provider.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 106 matching lines @@
 
   // base::Unretained is safe here, as the mojo channel will be deleted (and
   // will wipe its callbacks) before 'this' is deleted.
   GetBackgroundSyncServicePtr()->GetRegistrations(
       service_worker_registration_id,
       base::Bind(&BackgroundSyncProvider::GetRegistrationsCallback,
                  base::Unretained(this),
                  base::Passed(std::move(callbacksPtr))));
 }
 
-void BackgroundSyncProvider::releaseRegistration(int64_t handle_id) {
-  GetBackgroundSyncServicePtr()->ReleaseRegistration(handle_id);
-}
-
-void BackgroundSyncProvider::DuplicateRegistrationHandle(
-    int64_t handle_id,
-    const BackgroundSyncService::DuplicateRegistrationHandleCallback&
-        callback) {
-  GetBackgroundSyncServicePtr()->DuplicateRegistrationHandle(handle_id,
-                                                             callback);
-}
-
 void BackgroundSyncProvider::WillStopCurrentWorkerThread() {
   delete this;
 }
 
 void BackgroundSyncProvider::RegisterCallback(
     scoped_ptr<blink::WebSyncRegistrationCallbacks> callbacks,
     BackgroundSyncError error,
     const SyncRegistrationPtr& options) {
   // TODO(iclelland): Determine the correct error message to return in each case
   scoped_ptr<blink::WebSyncRegistration> result;
@@ skipping 68 matching lines @@
     mojo::InterfaceRequest<BackgroundSyncService> request =
         mojo::GetProxy(&background_sync_service_);
     main_thread_task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&ConnectToServiceOnMainThread, base::Passed(&request)));
   }
   return background_sync_service_;
 }
 
 }  // namespace content