Move SurfaceTexture construction to BackingStrategy.

content/common/gpu/media/android_copying_backing_strategy.h

 // Copyright 2015 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_COPYING_BACKING_STRATEGY_H_
 #define CONTENT_COMMON_GPU_MEDIA_ANDROID_COPYING_BACKING_STRATEGY_H_
 
 #include "base/compiler_specific.h"
 #include "base/threading/thread_checker.h"
 #include "content/common/content_export.h"
@@ skipping 17 matching lines @@
     : public AndroidVideoDecodeAccelerator::BackingStrategy {
  public:
   AndroidCopyingBackingStrategy();
   ~AndroidCopyingBackingStrategy() override;
 
   // AndroidVideoDecodeAccelerator::BackingStrategy
   void SetStateProvider(AndroidVideoDecodeAcceleratorStateProvider*) override;
   void Cleanup() override;
   uint32 GetNumPictureBuffers() const override;
   uint32 GetTextureTarget() const override;
-  void AssignCurrentSurfaceToPictureBuffer(
-      int32 codec_buffer_index,
-      const media::PictureBuffer&) override;
+  scoped_refptr<gfx::SurfaceTexture> CreateSurfaceTexture() override;
+  void UseCodecBufferForPictureBuffer(int32 codec_buffer_index,
+                                      const media::PictureBuffer&) override;
 
  private:
   // Used for copy the texture from surface texture to picture buffers.
   scoped_ptr<gpu::CopyTextureCHROMIUMResourceManager> copier_;
 
   AndroidVideoDecodeAcceleratorStateProvider* state_provider_;
+
+  // A container of texture. Used to set a texture to |media_codec_|.

[watk, 2015/09/25 21:31:17]

media_codec_ isn't a field here

+  scoped_refptr<gfx::SurfaceTexture> surface_texture_;
+
+  // The texture id which is set to |surface_texture_|.
+  uint32 surface_texture_id_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_ANDROID_COPYING_BACKING_STRATEGY_H_