Fix Android black frames from MSE config changes.

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 <stdint.h>
 
 #include <list>
@@ skipping 80 matching lines @@
     // per-image cleanup is needed.
     virtual void CodecChanged(media::VideoCodecBridge* codec,
                               const OutputBufferMap& buffer_map) = 0;
 
     // Notify the strategy that a frame is available.  This callback can happen
     // on any thread at any time.
     virtual void OnFrameAvailable() = 0;
 
     // Whether the pictures produced by this backing strategy are overlayable.
     virtual bool ArePicturesOverlayable() = 0;
+
+    // Size may have changed due to resolution change since the last time this
+    // PictureBuffer was used. Update the size of the picture buffer to
+    // |new_size| and also update any size-dependent state (e.g. size of
+    // associated texture). Callers should set the correct GL context prior to
+    // calling.
+    virtual void UpdatePictureBufferSize(media::PictureBuffer* picture_buffer,
+                                         const gfx::Size& new_size);
   };
 
   AndroidVideoDecodeAccelerator(
       const base::WeakPtr<gpu::gles2::GLES2Decoder> decoder,
       const base::Callback<bool(void)>& make_context_current);
 
   ~AndroidVideoDecodeAccelerator() override;
 
   // media::VideoDecodeAccelerator implementation:
   bool Initialize(const Config& config, Client* client) override;
   void SetCdm(int cdm_id) override;
   void Decode(const media::BitstreamBuffer& bitstream_buffer) override;
   void AssignPictureBuffers(
       const std::vector<media::PictureBuffer>& buffers) override;
   void ReusePictureBuffer(int32_t picture_buffer_id) override;
   void Flush() override;
   void Reset() override;
   void Destroy() override;
   bool CanDecodeOnIOThread() override;
 
   // AVDAStateProvider implementation:
   const gfx::Size& GetSize() const override;
   const base::ThreadChecker& ThreadChecker() const override;
   base::WeakPtr<gpu::gles2::GLES2Decoder> GetGlDecoder() const override;
+  gpu::gles2::TextureRef* GetTextureForPicture(
+      const media::PictureBuffer& picture_buffer) override;
   void PostError(const ::tracked_objects::Location& from_here,
                  media::VideoDecodeAccelerator::Error error) override;
 
   static media::VideoDecodeAccelerator::Capabilities GetCapabilities();
 
   // Notifies about SurfaceTexture::OnFrameAvailable.  This can happen on any
   // thread at any time!
   void OnFrameAvailable();
 
  private:
@@ skipping 189 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_