Revert "content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs"

content/shell/renderer/layout_test/test_video_frame_provider.cc

 // Copyright 2013 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/shell/renderer/layout_test/test_video_frame_provider.h"
 
 #include "base/bind.h"
 #include "base/location.h"
-#include "base/single_thread_task_runner.h"
-#include "base/thread_task_runner_handle.h"
+#include "base/message_loop/message_loop_proxy.h"
 #include "media/base/video_frame.h"
 
 namespace content {
 
 TestVideoFrameProvider::TestVideoFrameProvider(
     const gfx::Size& size,
     const base::TimeDelta& frame_duration,
     const base::Closure& error_cb,
     const VideoFrameProvider::RepaintCB& repaint_cb)
-    : task_runner_(base::ThreadTaskRunnerHandle::Get()),
+    : message_loop_proxy_(base::MessageLoopProxy::current()),
       size_(size),
       state_(kStopped),
       frame_duration_(frame_duration),
       error_cb_(error_cb),
       repaint_cb_(repaint_cb) {
 }
 
 TestVideoFrameProvider::~TestVideoFrameProvider() {}
 
 void TestVideoFrameProvider::Start() {
   DVLOG(1) << "TestVideoFrameProvider::Start";
-  DCHECK(task_runner_->BelongsToCurrentThread());
+  DCHECK(message_loop_proxy_->BelongsToCurrentThread());
   state_ = kStarted;
-  task_runner_->PostTask(
-      FROM_HERE, base::Bind(&TestVideoFrameProvider::GenerateFrame, this));
+  message_loop_proxy_->PostTask(
+      FROM_HERE,
+      base::Bind(&TestVideoFrameProvider::GenerateFrame, this));
 }
 
 void TestVideoFrameProvider::Stop() {
   DVLOG(1) << "TestVideoFrameProvider::Stop";
-  DCHECK(task_runner_->BelongsToCurrentThread());
+  DCHECK(message_loop_proxy_->BelongsToCurrentThread());
   state_ = kStopped;
 }
 
 void TestVideoFrameProvider::Play() {
   DVLOG(1) << "TestVideoFrameProvider::Play";
-  DCHECK(task_runner_->BelongsToCurrentThread());
+  DCHECK(message_loop_proxy_->BelongsToCurrentThread());
   if (state_ == kPaused)
     state_ = kStarted;
 }
 
 void TestVideoFrameProvider::Pause() {
   DVLOG(1) << "TestVideoFrameProvider::Pause";
-  DCHECK(task_runner_->BelongsToCurrentThread());
+  DCHECK(message_loop_proxy_->BelongsToCurrentThread());
   if (state_ == kStarted)
     state_ = kPaused;
 }
 
 void TestVideoFrameProvider::GenerateFrame() {
   DVLOG(1) << "TestVideoFrameProvider::GenerateFrame";
-  DCHECK(task_runner_->BelongsToCurrentThread());
+  DCHECK(message_loop_proxy_->BelongsToCurrentThread());
   if (state_ == kStopped)
     return;
 
   if (state_ == kStarted) {
     // Always allocate a new frame filled with white color.
     scoped_refptr<media::VideoFrame> video_frame =
         media::VideoFrame::CreateColorFrame(
             size_, 255, 128, 128, current_time_);
 
     // TODO(wjia): set pixel data to pre-defined patterns if it's desired to
     // verify frame content.
 
     repaint_cb_.Run(video_frame);
   }
 
   current_time_ += frame_duration_;
-  task_runner_->PostDelayedTask(
-      FROM_HERE, base::Bind(&TestVideoFrameProvider::GenerateFrame, this),
+  message_loop_proxy_->PostDelayedTask(
+      FROM_HERE,
+      base::Bind(&TestVideoFrameProvider::GenerateFrame, this),
       frame_duration_);
 }
 
 }  // namespace content