Start using deferred rendering for WebView on L.

media/video/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 MEDIA_VIDEO_VIDEO_DECODE_ACCELERATOR_H_
 #define MEDIA_VIDEO_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 43 matching lines @@
       // more decoded output.  See VideoDecoder::CanReadWithoutStalling for
       // more context.
       // If this flag is set, then the VDA does not make this guarantee.  The
       // client must return PictureBuffers to be sure that new frames will be
       // provided via PictureReady.
       NEEDS_ALL_PICTURE_BUFFERS_TO_DECODE = 1 << 0,
 
       // Whether the VDA supports being configured with an output surface for
       // it to render frames to. For example, SurfaceViews on Android.
       SUPPORTS_EXTERNAL_OUTPUT_SURFACE = 1 << 1,
+
+      // If set, then all video frames must be copied before they can be sent
+      // to the browser compositor.  This is to support WebView.
+      COPY_REQUIRED = 1 << 2,
     };
 
     SupportedProfiles supported_profiles;
     uint32_t flags;
   };
 
   // Enumeration of potential errors generated by the API.
   // Note: Keep these in sync with PP_VideoDecodeError_Dev. Also do not
   // rearrange, reuse or remove values as they are used for gathering UMA
   // statistics.
@@ skipping 177 matching lines @@
 // Specialize std::default_delete so that scoped_ptr<VideoDecodeAccelerator>
 // uses "Destroy()" instead of trying to use the destructor.
 template <>
 struct MEDIA_EXPORT default_delete<media::VideoDecodeAccelerator> {
   void operator()(media::VideoDecodeAccelerator* vda) const;
 };
 
 }  // namespace std
 
 #endif  // MEDIA_VIDEO_VIDEO_DECODE_ACCELERATOR_H_