Add an additional VDA::Flush() mode to return all allocated buffers.

content/common/gpu/media/gpu_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.
 
 #ifndef CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 93 matching lines @@
 
   // We only allow self-delete, from OnWillDestroyStub(), after cleanup there.
   ~GpuVideoDecodeAccelerator() override;
 
   // Handlers for IPC messages.
   void OnSetCdm(int cdm_id);
   void OnDecode(const media::BitstreamBuffer& bitstream_buffer);
   void OnAssignPictureBuffers(const std::vector<int32_t>& buffer_ids,
                               const std::vector<uint32_t>& texture_ids);
   void OnReusePictureBuffer(int32_t picture_buffer_id);
-  void OnFlush();
+  void OnFlush(bool return_buffers);
   void OnReset();
   void OnDestroy();
 
   // Called on IO thread when |filter_| has been removed.
   void OnFilterRemoved();
 
   // Sets the texture to cleared.
   void SetTextureCleared(const media::Picture& picture);
 
 #if (defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)) || defined(OS_MACOSX)
@@ skipping 50 matching lines @@
 
   // A map from picture buffer ID to TextureRef that have not been cleared.
   std::map<int32_t, scoped_refptr<gpu::gles2::TextureRef>> uncleared_textures_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(GpuVideoDecodeAccelerator);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_H_