[chrome/browser/metrices] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

chrome/browser/metrics/thread_watcher.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/browser/metrics/thread_watcher.h"
 
 #include <math.h>  // ceil
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 15 matching lines @@
 #if defined(OS_WIN)
 #include "base/win/windows_version.h"
 #endif
 
 using content::BrowserThread;
 
 // ThreadWatcher methods and members.
 ThreadWatcher::ThreadWatcher(const WatchingParams& params)
     : thread_id_(params.thread_id),
       thread_name_(params.thread_name),
-      watched_loop_(
+      watched_runner_(
           BrowserThread::GetMessageLoopProxyForThread(params.thread_id)),
       sleep_time_(params.sleep_time),
       unresponsive_time_(params.unresponsive_time),
       ping_time_(base::TimeTicks::Now()),
       pong_time_(ping_time_),
       ping_sequence_number_(0),
       active_(false),
       ping_count_(params.unresponsive_threshold),
       response_time_histogram_(NULL),
       unresponsive_time_histogram_(NULL),
@@ skipping 87 matching lines @@
     return;
 
   // Save the current time when we have sent ping message.
   ping_time_ = base::TimeTicks::Now();
 
   // Send a ping message to the watched thread. Callback will be called on
   // the WatchDogThread.
   base::Closure callback(
       base::Bind(&ThreadWatcher::OnPongMessage, weak_ptr_factory_.GetWeakPtr(),
                  ping_sequence_number_));
-  if (watched_loop_->PostTask(
+  if (watched_runner_->PostTask(
           FROM_HERE,
           base::Bind(&ThreadWatcher::OnPingMessage, thread_id_,
                      callback))) {
       // Post a task to check the responsiveness of watched thread.
       base::MessageLoop::current()->PostDelayedTask(
           FROM_HERE,
           base::Bind(&ThreadWatcher::OnCheckResponsiveness,
                      weak_ptr_factory_.GetWeakPtr(), ping_sequence_number_),
           unresponsive_time_);
   } else {
@@ skipping 773 matching lines @@
 
 #if defined(OS_WIN)
   // On Windows XP, give twice the time for shutdown.
   if (base::win::GetVersion() <= base::win::VERSION_XP)
     actual_duration *= 2;
 #endif
 
   shutdown_watchdog_ = new ShutdownWatchDogThread(actual_duration);
   shutdown_watchdog_->Arm();
 }