Remove use of deprecated MessageLoop methods in gpu.

gpu/ipc/service/gpu_channel_manager.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 "gpu/ipc/service/gpu_channel_manager.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 246 matching lines @@
                "keep_awake_time", (now - begin_wake_up_time_).InMilliseconds());
   if (now - last_gpu_access_time_ <
       base::TimeDelta::FromMilliseconds(kMaxGpuIdleTimeMs))
     return;
   if (now - begin_wake_up_time_ >
       base::TimeDelta::FromMilliseconds(kMaxKeepAliveTimeMs))
     return;
 
   DoWakeUpGpu();
 
-  base::MessageLoop::current()->PostDelayedTask(
+  base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE, base::Bind(&GpuChannelManager::ScheduleWakeUpGpu,
                             weak_factory_.GetWeakPtr()),
       base::TimeDelta::FromMilliseconds(kMaxGpuIdleTimeMs));
 }
 
 void GpuChannelManager::DoWakeUpGpu() {
   const GpuCommandBufferStub* stub = nullptr;
   for (const auto& kv : gpu_channels_) {
     const GpuChannel* channel = kv.second;
     stub = channel->GetOneStub();
     if (stub) {
       DCHECK(stub->decoder());
       break;
     }
   }
   if (!stub || !stub->decoder()->MakeCurrent())
     return;
   glFinish();
   DidAccessGpu();
 }
 #endif
 
 }  // namespace gpu