Remove all remaining traces of MessageLoopProxy.

content/browser/wake_lock/wake_lock_service_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/wake_lock/wake_lock_service_context.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "build/build_config.h"
@@ skipping 51 matching lines @@
 
 bool WakeLockServiceContext::HasWakeLockForTests() const {
   return !!wake_lock_;
 }
 
 void WakeLockServiceContext::CreateWakeLock() {
   DCHECK(!wake_lock_);
   wake_lock_.reset(new device::PowerSaveBlocker(
       device::PowerSaveBlocker::kPowerSaveBlockPreventDisplaySleep,
       device::PowerSaveBlocker::kReasonOther, "Wake Lock API",
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI),
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE)));
+      BrowserThread::GetTaskRunnerForThread(BrowserThread::UI),
+      BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE)));
 
 #if defined(OS_ANDROID)
   // On Android, additionaly associate the blocker with this WebContents.
   DCHECK(web_contents());
 
   if (web_contents()->GetNativeView()) {
     view_weak_factory_.reset(new base::WeakPtrFactory<ui::ViewAndroid>(
         web_contents()->GetNativeView()));
     wake_lock_.get()->InitDisplaySleepBlocker(view_weak_factory_->GetWeakPtr());
   }
 #endif
 }
 
 void WakeLockServiceContext::RemoveWakeLock() {
   DCHECK(wake_lock_);
   wake_lock_.reset();
 }
 
 void WakeLockServiceContext::UpdateWakeLock() {
   if (!frames_requesting_lock_.empty()) {
     if (!wake_lock_)
       CreateWakeLock();
   } else {
     if (wake_lock_)
       RemoveWakeLock();
   }
 }
 
 }  // namespace content