BackgroundSync: Convert to base::BindOnce/OnceCallback/OnceClosure

content/browser/background_sync/background_sync_context.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/browser/background_sync/background_sync_context.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
@@ skipping 13 matching lines @@
   DCHECK(!background_sync_manager_);
   DCHECK(services_.empty());
 }
 
 void BackgroundSyncContext::Init(
     const scoped_refptr<ServiceWorkerContextWrapper>& context) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
-      base::Bind(&BackgroundSyncContext::CreateBackgroundSyncManager, this,
-                 context));
+      base::BindOnce(&BackgroundSyncContext::CreateBackgroundSyncManager, this,
+                     context));
 }
 
 void BackgroundSyncContext::Shutdown() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
-      base::Bind(&BackgroundSyncContext::ShutdownOnIO, this));
+      base::BindOnce(&BackgroundSyncContext::ShutdownOnIO, this));
 }
 
 void BackgroundSyncContext::CreateService(
     const service_manager::BindSourceInfo& source_info,
     blink::mojom::BackgroundSyncServiceRequest request) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
-      base::Bind(&BackgroundSyncContext::CreateServiceOnIOThread, this,
-                 base::Passed(&request)));
+      base::BindOnce(&BackgroundSyncContext::CreateServiceOnIOThread, this,
+                     base::Passed(&request)));
 }
 
 void BackgroundSyncContext::ServiceHadConnectionError(
     BackgroundSyncServiceImpl* service) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DCHECK(base::ContainsKey(services_, service));
 
   services_.erase(service);
 }
 
@@ skipping 28 matching lines @@
 }
 
 void BackgroundSyncContext::ShutdownOnIO() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   services_.clear();
   background_sync_manager_.reset();
 }
 
 }  // namespace content