Enable texture copy for webiew

content/renderer/media/android/stream_texture_wrapper_impl.h

 // Copyright 2016 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_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_WRAPPER_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_WRAPPER_IMPL_H_
 
 #include <memory>
 
 #include "content/common/content_export.h"
@@ skipping 25 matching lines @@
 // the IPC fired by the StreamTexture's OnFrameAvailable() callback.
 // - We bind the StreamTextureProxy's lifetime to the |compositor_task_runner_|.
 // - We wrap the client texture into a VideoFrame.
 // - When the SurfaceTexture's OnFrameAvailable() callback is fired (and routed
 // to the StreamTextureProxy living on the compositor thread), we notify
 // |client_| that a new frame is available, via the DidReceiveFrame() callback.
 class CONTENT_EXPORT StreamTextureWrapperImpl
     : public media::StreamTextureWrapper {
  public:
   static media::ScopedStreamTextureWrapper Create(
+      bool enable_texture_copy,

[liberato (no reviews please), 2016/11/07 22:35:31]

please add a line to document this.

[tguilbert, 2016/11/07 23:25:01]

Done.

       scoped_refptr<StreamTextureFactory> factory,
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner);
 
   // Creates the underlying StreamTexture, and binds |stream_texture_proxy_| to
   // |compositor_task_runner|.
   //
   // Additional threading considerations:
   //   - Can be called from any thread.
   //   - Initialization will be posted to |main_task_runner_|.
   //   - |init_cb| will be run on the calling thread.
@@ skipping 17 matching lines @@
 
   // Sends the StreamTexture to the browser process, to fulfill the request
   // identified by |request_token|.
   // Uses the gpu::ScopedSurfaceRequestConduit to forward the underlying
   // SurfaceTexture to the ScopedSurfaceRequestManager.
   void ForwardStreamTextureForSurfaceRequest(
       const base::UnguessableToken& request_token) override;
 
  private:
   StreamTextureWrapperImpl(
+      bool enable_texture_copy,
       scoped_refptr<StreamTextureFactory> factory,
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner);
   ~StreamTextureWrapperImpl() override;
 
   // Destroys |this| safely on |main_task_runner_|.
   void Destroy() override;
 
   void InitializeOnMainThread(const base::Closure& received_frame_cb,
                               const base::Closure& init_cb);
 
   void ReallocateVideoFrame(const gfx::Size& natural_size);
 
   void SetCurrentFrameInternal(
       const scoped_refptr<media::VideoFrame>& video_frame);
 
+  bool enable_texture_copy_;
+
   // Client GL texture ID allocated to the StreamTexture.
   unsigned texture_id_;
 
   // GL texture mailbox for |texture_id_|.
   gpu::Mailbox texture_mailbox_;
 
   // Object for calling back the compositor thread to repaint the video when a
   // frame is available. It should be bound to |compositor_task_runner_|.
   ScopedStreamTextureProxy stream_texture_proxy_;
 
   // Size of the video frames.
   gfx::Size natural_size_;
 
   scoped_refptr<StreamTextureFactory> factory_;
 
   base::Lock current_frame_lock_;
   scoped_refptr<media::VideoFrame> current_frame_;
 
   scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_;
 
   base::WeakPtrFactory<StreamTextureWrapperImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(StreamTextureWrapperImpl);
 };
 
 }  // namespace media
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_WRAPPER_IMPL_H_