Revert of content/common: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

content/common/gpu/media/gpu_video_encode_accelerator.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/common/gpu/media/gpu_video_encode_accelerator.h"
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/shared_memory.h"
+#include "base/message_loop/message_loop_proxy.h"
 #include "base/numerics/safe_math.h"
 #include "base/sys_info.h"
 #include "build/build_config.h"
 #include "content/common/gpu/gpu_channel.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/common/gpu/media/gpu_video_accelerator_util.h"
 #include "content/public/common/content_switches.h"
 #include "ipc/ipc_message_macros.h"
 #include "media/base/limits.h"
 #include "media/base/video_frame.h"
@@ skipping 251 matching lines @@
           input_format_,
           input_coded_size_,
           gfx::Rect(input_visible_size_),
           input_visible_size_,
           shm_memory,
           buffer_size,
           buffer_handle,
           buffer_offset,
           base::TimeDelta(),
           // It's turtles all the way down...
-          base::Bind(base::IgnoreResult(
-                         &base::SingleThreadTaskRunner::PostTask),
-                     base::ThreadTaskRunnerHandle::Get(),
+          base::Bind(base::IgnoreResult(&base::MessageLoopProxy::PostTask),
+                     base::MessageLoopProxy::current(),
                      FROM_HERE,
                      base::Bind(&GpuVideoEncodeAccelerator::EncodeFrameFinished,
                                 weak_this_factory_.GetWeakPtr(),
                                 frame_id,
                                 base::Passed(&shm))));
 
   if (!frame.get()) {
     DLOG(ERROR) << "GpuVideoEncodeAccelerator::OnEncode(): "
                    "could not create VideoFrame for frame_id=" << frame_id;
     NotifyError(media::VideoEncodeAccelerator::kPlatformFailureError);
@@ skipping 56 matching lines @@
   stub_->channel()->Send(message);
 }
 
 void GpuVideoEncodeAccelerator::SendCreateEncoderReply(IPC::Message* message,
                                                        bool succeeded) {
   GpuCommandBufferMsg_CreateVideoEncoder::WriteReplyParams(message, succeeded);
   Send(message);
 }
 
 }  // namespace content