chrome: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

chrome/common/worker_thread_ticker.cc

 // Copyright (c) 2012 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/common/worker_thread_ticker.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
+#include "base/location.h"
 #include "base/logging.h"
-#include "base/message_loop/message_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/threading/thread.h"
 
 WorkerThreadTicker::WorkerThreadTicker(int tick_interval)
     : timer_thread_("worker_thread_ticker"),
       is_running_(false),
       tick_interval_(base::TimeDelta::FromMilliseconds(tick_interval)) {
 }
 
 WorkerThreadTicker::~WorkerThreadTicker() {
   Stop();
@@ skipping 46 matching lines @@
   // call Stop at the same time
   base::AutoLock lock(lock_);
   if (!IsRunning())
     return false;
   is_running_ = false;
   timer_thread_.Stop();
   return true;
 }
 
 void WorkerThreadTicker::ScheduleTimerTask() {
-  timer_thread_.message_loop()->PostDelayedTask(
+  timer_thread_.task_runner()->PostDelayedTask(
       FROM_HERE,
       base::Bind(&WorkerThreadTicker::TimerTask, base::Unretained(this)),
       tick_interval_);
 }
 
 void WorkerThreadTicker::TimerTask() {
   // When the ticker is running, the handler list CANNOT be modified.
   // So we can do the enumeration safely without a lock
   const TickHandlerListType& handlers = tick_handler_list_;
   for (TickHandlerListType::const_iterator i = handlers.begin();
        i != handlers.end(); ++i) {
     (*i)->OnTick();
   }
 
   ScheduleTimerTask();
 }