content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

content/shell/renderer/layout_test/test_video_frame_provider.h

 // 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.
 
 #ifndef CONTENT_SHELL_RENDERER_LAYOUT_TEST_TEST_VIDEO_FRAME_PROVIDER_H_
 #define CONTENT_SHELL_RENDERER_LAYOUT_TEST_TEST_VIDEO_FRAME_PROVIDER_H_
 
 #include "base/time/time.h"
 #include "content/public/renderer/video_frame_provider.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace base {
-class MessageLoopProxy;
+class SingleThreadTaskRunner;
 }
 
 namespace content {
 
 // A simple implementation of VideoFrameProvider generates raw frames and
 // passes them to webmediaplayer.
 // Since non-black pixel values are required in the layout test, e.g.,
 // media/video-capture-canvas.html, this class should generate frame with
 // only non-black pixels.
 class TestVideoFrameProvider : public VideoFrameProvider {
@@ skipping 15 matching lines @@
 
  private:
   enum State {
     kStarted,
     kPaused,
     kStopped,
   };
 
   void GenerateFrame();
 
-  scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
+  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   gfx::Size size_;
   State state_;
 
   base::TimeDelta current_time_;
   base::TimeDelta frame_duration_;
   base::Closure error_cb_;
   RepaintCB repaint_cb_;
 
   DISALLOW_COPY_AND_ASSIGN(TestVideoFrameProvider);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_LAYOUT_TEST_TEST_VIDEO_FRAME_PROVIDER_H_