Remove calls to MessageLoop::current() in media.

media/gpu/vaapi_video_decode_accelerator.h

 // 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.
 //
 // This file contains an implementation of VideoDecoderAccelerator
 // that utilizes hardware video decoder present on Intel CPUs.
 
 #ifndef MEDIA_GPU_VAAPI_VIDEO_DECODE_ACCELERATOR_H_
 #define MEDIA_GPU_VAAPI_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <list>
 #include <map>
 #include <memory>
 #include <queue>
 #include <utility>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/linked_ptr.h"
+#include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
-#include "base/message_loop/message_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/synchronization/condition_variable.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread.h"
 #include "media/base/bitstream_buffer.h"
 #include "media/gpu/gpu_video_decode_accelerator_helpers.h"
 #include "media/gpu/media_gpu_export.h"
 #include "media/gpu/shared_memory_region.h"
 #include "media/gpu/vaapi_wrapper.h"
 #include "media/video/picture.h"
 #include "media/video/video_decode_accelerator.h"
@@ skipping 218 matching lines @@
   // to use, we'll execute the callback passing the Picture. The callback
   // will put the contents of the surface into the picture and return it to
   // the client, releasing the surface as well.
   // If we don't have any available Pictures at the time when the decoder
   // requests output, we'll store the request on pending_output_cbs_ queue for
   // later and run it once the client gives us more textures
   // via ReusePictureBuffer().
   typedef base::Callback<void(VaapiPicture*)> OutputCB;
   std::queue<OutputCB> pending_output_cbs_;
 
-  // ChildThread's message loop
-  base::MessageLoop* message_loop_;
+  // ChildThread's task runner.
+  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   // WeakPtr<> pointing to |this| for use in posting tasks from the decoder
   // thread back to the ChildThread.  Because the decoder thread is a member of
   // this class, any task running on the decoder thread is guaranteed that this
   // object is still alive.  As a result, tasks posted from ChildThread to
   // decoder thread should use base::Unretained(this), and tasks posted from the
   // decoder thread to the ChildThread should use |weak_this_|.
   base::WeakPtr<VaapiVideoDecodeAccelerator> weak_this_;
 
   // Callback used when creating VASurface objects.
   VASurface::ReleaseCB va_surface_release_cb_;
 
   // To expose client callbacks from VideoDecodeAccelerator.
-  // NOTE: all calls to these objects *MUST* be executed on message_loop_.
+  // NOTE: all calls to these objects *MUST* be executed on task_runner_.
   std::unique_ptr<base::WeakPtrFactory<Client>> client_ptr_factory_;
   base::WeakPtr<Client> client_;
 
   // Accelerators come after vaapi_wrapper_ to ensure they are destroyed first.
   std::unique_ptr<VaapiH264Accelerator> h264_accelerator_;
   std::unique_ptr<VaapiVP8Accelerator> vp8_accelerator_;
   std::unique_ptr<VaapiVP9Accelerator> vp9_accelerator_;
   // After *_accelerator_ to ensure correct destruction order.
   std::unique_ptr<AcceleratedVideoDecoder> decoder_;
 
@@ skipping 26 matching lines @@
 
   // The WeakPtrFactory for |weak_this_|.
   base::WeakPtrFactory<VaapiVideoDecodeAccelerator> weak_this_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VaapiVideoDecodeAccelerator);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_GPU_VAAPI_VIDEO_DECODE_ACCELERATOR_H_