Remove all remaining traces of MessageLoopProxy.

chrome/browser/chromeos/device/input_service_proxy.cc

 // 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.
 
 #include "chrome/browser/chromeos/device/input_service_proxy.h"
 
 #include "base/bind_helpers.h"
 #include "base/macros.h"
 #include "base/task_runner_util.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 69 matching lines @@
     return BrowserThread::CurrentlyOn(InputServiceProxy::thread_identifier_);
   }
 
   base::WeakPtr<InputServiceProxy> proxy_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceObserver);
 };
 
 InputServiceProxy::InputServiceProxy()
     : service_observer_(new ServiceObserver()),
-      task_runner_(BrowserThread::GetMessageLoopProxyForThread(
-          thread_identifier_)),
+      task_runner_(BrowserThread::GetTaskRunnerForThread(thread_identifier_)),
       weak_factory_(this) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&InputServiceProxy::ServiceObserver::Initialize,
                  base::Unretained(service_observer_.get()),
                  weak_factory_.GetWeakPtr()));
 }
 
 InputServiceProxy::~InputServiceProxy() {
@@ skipping 47 matching lines @@
   DCHECK(thread_checker_.CalledOnValidThread());
   FOR_EACH_OBSERVER(Observer, observers_, OnInputDeviceAdded(info));
 }
 
 void InputServiceProxy::OnDeviceRemoved(const std::string& id) {
   DCHECK(thread_checker_.CalledOnValidThread());
   FOR_EACH_OBSERVER(Observer, observers_, OnInputDeviceRemoved(id));
 }
 
 }  // namespace chromeos