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

content/common/gpu/gpu_command_buffer_stub.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 "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/hash.h"
 #include "base/json/json_writer.h"
 #include "base/memory/shared_memory.h"
@@ skipping 367 matching lines @@
   // is done synchronously so we can set delay to 0 and instead poll
   // for more work at the rate idle work is performed. This also ensures
   // that idle work is done as efficiently as possible without any
   // unnecessary delays.
   if (scheduler_.get() &&
       scheduler_->IsScheduled() &&
       scheduler_->HasMoreIdleWork()) {
     delay = 0;
   }
 
-  base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
-      FROM_HERE, base::Bind(&GpuCommandBufferStub::PollWork, AsWeakPtr()),
+  base::MessageLoop::current()->PostDelayedTask(
+      FROM_HERE,
+      base::Bind(&GpuCommandBufferStub::PollWork, AsWeakPtr()),
       base::TimeDelta::FromMilliseconds(delay));
 }
 
 bool GpuCommandBufferStub::MakeCurrent() {
   if (decoder_->MakeCurrent())
     return true;
   DLOG(ERROR) << "Context lost because MakeCurrent failed.";
   command_buffer_->SetContextLostReason(decoder_->GetContextLostReason());
   command_buffer_->SetParseError(gpu::error::kLostContext);
   CheckContextLost();
@@ skipping 423 matching lines @@
   FastSetActiveURL(active_url_, active_url_hash_);
   scheduler_->PutChanged();
 }
 
 void GpuCommandBufferStub::OnCreateVideoDecoder(
     media::VideoCodecProfile profile,
     int32 decoder_route_id,
     IPC::Message* reply_message) {
   TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnCreateVideoDecoder");
   GpuVideoDecodeAccelerator* decoder = new GpuVideoDecodeAccelerator(
-      decoder_route_id, this, channel_->io_task_runner());
+      decoder_route_id, this, channel_->io_message_loop());
   decoder->Initialize(profile, reply_message);
   // decoder is registered as a DestructionObserver of this stub and will
   // self-delete during destruction of this stub.
 }
 
 void GpuCommandBufferStub::OnCreateVideoEncoder(
     media::VideoFrame::Format input_format,
     const gfx::Size& input_visible_size,
     media::VideoCodecProfile output_profile,
     uint32 initial_bitrate,
@@ skipping 267 matching lines @@
   Send(new GpuCommandBufferMsg_SwapBuffersCompleted(route_id_, latency_info));
 }
 
 void GpuCommandBufferStub::SendUpdateVSyncParameters(base::TimeTicks timebase,
                                                      base::TimeDelta interval) {
   Send(new GpuCommandBufferMsg_UpdateVSyncParameters(route_id_, timebase,
                                                      interval));
 }
 
 }  // namespace content