Make VEA client of command buffer; move sync. IPC to VDA/VEA::Initialize()

content/common/gpu/media/exynos_video_encode_accelerator.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_COMMON_GPU_MEDIA_EXYNOS_VIDEO_ENCODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_EXYNOS_VIDEO_ENCODE_ACCELERATOR_H_
 
 #include <list>
 #include <vector>
 
@@ skipping 22 matching lines @@
 // V4L2 devices exported by the Multi Format Codec and GScaler hardware blocks
 // on the Exynos platform.  The threading model of this class is the same as the
 // ExynosVideoDecodeAccelerator (from which class this was designed).
 class CONTENT_EXPORT ExynosVideoEncodeAccelerator
     : public media::VideoEncodeAccelerator {
  public:
   ExynosVideoEncodeAccelerator();
   virtual ~ExynosVideoEncodeAccelerator();
 
   // media::VideoEncodeAccelerator implementation.
-  virtual void Initialize(media::VideoFrame::Format format,
+  virtual bool Initialize(media::VideoFrame::Format format,
                           const gfx::Size& input_visible_size,
                           media::VideoCodecProfile output_profile,
                           uint32 initial_bitrate,
                           Client* client) OVERRIDE;
   virtual void Encode(const scoped_refptr<media::VideoFrame>& frame,
                       bool force_keyframe) OVERRIDE;
   virtual void UseOutputBitstreamBuffer(
       const media::BitstreamBuffer& buffer) OVERRIDE;
   virtual void RequestEncodingParametersChange(uint32 bitrate,
                                                uint32 framerate) OVERRIDE;
@@ skipping 245 matching lines @@
   // eventfd fd to signal device poll thread when its poll() should be
   // interrupted.
   int device_poll_interrupt_fd_;
 
   DISALLOW_COPY_AND_ASSIGN(ExynosVideoEncodeAccelerator);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_EXYNOS_VIDEO_ENCODE_ACCELERATOR_H_