Adding YUVA support for enabling Alpha Playback

cc/layers/video_layer_impl.cc

 // Copyright 2011 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.
 
 #include "cc/layers/video_layer_impl.h"
 
 #include "base/logging.h"
 #include "cc/base/math_util.h"
 #include "cc/layers/quad_sink.h"
 #include "cc/layers/video_frame_provider_client_impl.h"
@@ skipping 183 matching lines @@
     quad_sink->Append(solid_color_draw_quad.PassAs<DrawQuad>(),
                       append_quads_data);
     return;
   }
 #endif
 
   switch (format_) {
     case media::VideoFrame::YV12:
     case media::VideoFrame::YV16: {
       // YUV software decoder.
-      const FramePlane& y_plane = frame_planes_[media::VideoFrame::kYPlane];
-      const FramePlane& u_plane = frame_planes_[media::VideoFrame::kUPlane];
-      const FramePlane& v_plane = frame_planes_[media::VideoFrame::kVPlane];
+      const FramePlane* y_plane = &frame_planes_[media::VideoFrame::kYPlane];
+      const FramePlane* u_plane = &frame_planes_[media::VideoFrame::kUPlane];
+      const FramePlane* v_plane = &frame_planes_[media::VideoFrame::kVPlane];
       gfx::SizeF tex_scale(tex_width_scale, tex_height_scale);
       scoped_ptr<YUVVideoDrawQuad> yuv_video_quad = YUVVideoDrawQuad::Create();
       yuv_video_quad->SetNew(shared_quad_state,
                              quad_rect,
                              opaque_rect,
                              tex_scale,
                              y_plane,
                              u_plane,
-                             v_plane);
+                             v_plane,
+                             NULL);
       quad_sink->Append(yuv_video_quad.PassAs<DrawQuad>(), append_quads_data);
       break;
     }
     case media::VideoFrame::RGB32: {
       // RGBA software decoder: a converted YUV frame (see: convert_yuv_).
       const FramePlane& plane = frame_planes_[media::VideoFrame::kRGBPlane];
       bool premultiplied_alpha = true;
       gfx::PointF uv_top_left(0.f, 0.f);
       gfx::PointF uv_bottom_right(tex_width_scale, tex_height_scale);
       float opacity[] = {1.0f, 1.0f, 1.0f, 1.0f};
@@ skipping 245 matching lines @@
 void VideoLayerImpl::SetProviderClientImpl(
     scoped_refptr<VideoFrameProviderClientImpl> provider_client_impl) {
   provider_client_impl_ = provider_client_impl;
 }
 
 const char* VideoLayerImpl::LayerTypeAsString() const {
   return "VideoLayer";
 }
 
 }  // namespace cc