media: Compute proper VideoFrame::coded_rect for copies to GMBs.

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/bind.h"
 #include "base/logging.h"
 #include "cc/layers/video_frame_provider_client_impl.h"
 #include "cc/quads/io_surface_draw_quad.h"
@@ skipping 215 matching lines @@
       if (frame_->metadata()->GetInteger(media::VideoFrameMetadata::COLOR_SPACE,
                                          &videoframe_color_space)) {
         if (videoframe_color_space == media::COLOR_SPACE_JPEG) {
           color_space = YUVVideoDrawQuad::JPEG;
         } else if (videoframe_color_space == media::COLOR_SPACE_HD_REC709) {
           color_space = YUVVideoDrawQuad::REC_709;
         }
       }
 
       const gfx::Size ya_tex_size = coded_size;
-      gfx::Size uv_tex_size;
+      gfx::Size uv_tex_size = media::VideoFrame::PlaneSize(
+          frame_->format(), media::VideoFrame::kUPlane, coded_size);
 
       if (frame_->HasTextures()) {
         DCHECK_EQ(media::PIXEL_FORMAT_I420, frame_->format());
         DCHECK_EQ(3u, frame_resources_.size());  // Alpha is not supported yet.
-        DCHECK(visible_rect.origin().IsOrigin());
-        DCHECK(visible_rect.size() == coded_size);
-        uv_tex_size.SetSize((ya_tex_size.width() + 1) / 2,
-                            (ya_tex_size.height() + 1) / 2);
       } else {
-        uv_tex_size = media::VideoFrame::PlaneSize(
-            frame_->format(), media::VideoFrame::kUPlane, coded_size);
         DCHECK(uv_tex_size ==
                media::VideoFrame::PlaneSize(
                    frame_->format(), media::VideoFrame::kVPlane, coded_size));
         DCHECK_IMPLIES(
             frame_resources_.size() > 3,
             ya_tex_size ==
                 media::VideoFrame::PlaneSize(
                     frame_->format(), media::VideoFrame::kAPlane, coded_size));
       }
 
@@ skipping 145 matching lines @@
 void VideoLayerImpl::SetNeedsRedraw() {
   SetUpdateRect(gfx::UnionRects(update_rect(), gfx::Rect(bounds())));
   layer_tree_impl()->SetNeedsRedraw();
 }
 
 const char* VideoLayerImpl::LayerTypeAsString() const {
   return "cc::VideoLayerImpl";
 }
 
 }  // namespace cc