Introduce a client minimum picture pool size

content/common/gpu/media/android_video_decode_accelerator.h

 // Copyright (c) 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_ANDROID_VIDEO_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_ANDROID_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <list>
 #include <map>
 #include <queue>
@@ skipping 19 matching lines @@
 // class. http://developer.android.com/reference/android/media/MediaCodec.html
 class CONTENT_EXPORT AndroidVideoDecodeAccelerator
     : public media::VideoDecodeAccelerator {
  public:
   // Does not take ownership of |client| which must outlive |*this|.
   AndroidVideoDecodeAccelerator(
       const base::WeakPtr<gpu::gles2::GLES2Decoder> decoder,
       const base::Callback<bool(void)>& make_context_current);
 
   // media::VideoDecodeAccelerator implementation.
-  bool Initialize(media::VideoCodecProfile profile, Client* client) override;
+  bool Initialize(
+      media::VideoCodecProfile profile,
+      uint32 min_picture_count,
+      Client* client) override;
   void Decode(const media::BitstreamBuffer& bitstream_buffer) override;
   void AssignPictureBuffers(
       const std::vector<media::PictureBuffer>& buffers) override;
   void ReusePictureBuffer(int32 picture_buffer_id) override;
   void Flush() override;
   void Reset() override;
   void Destroy() override;
   bool CanDecodeOnIOThread() override;
 
   static media::VideoDecodeAccelerator::SupportedProfiles
@@ skipping 46 matching lines @@
 
   // Notifies about decoding errors.
   void NotifyError(media::VideoDecodeAccelerator::Error error);
 
   // Used to DCHECK that we are called on the correct thread.
   base::ThreadChecker thread_checker_;
 
   // To expose client callbacks from VideoDecodeAccelerator.
   Client* client_;
 
+  // The number of picture buffers to allocate.
+  uint32 num_picture_buffers_;
+
   // Callback to set the correct gl context.
   base::Callback<bool(void)> make_context_current_;
 
   // Codec type. Used when we configure media codec.
   media::VideoCodec codec_;
 
   // The current state of this class. For now, this is used only for setting
   // error state.
   State state_;
 
@@ skipping 48 matching lines @@
 
   // WeakPtrFactory for posting tasks back to |this|.
   base::WeakPtrFactory<AndroidVideoDecodeAccelerator> weak_this_factory_;
 
   friend class AndroidVideoDecodeAcceleratorTest;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_ANDROID_VIDEO_DECODE_ACCELERATOR_H_