Audit/fix use of media::VideoFrame::coded_size()

cc/layers/video_layer_impl.cc

Index: cc/layers/video_layer_impl.cc
diff --git a/cc/layers/video_layer_impl.cc b/cc/layers/video_layer_impl.cc
index fd4548a30836f62c367f62eb4199f5c3f20fc22b..df161262b4cc2f092e378c6960928fc9a3eb53b7 100644
--- a/cc/layers/video_layer_impl.cc
+++ b/cc/layers/video_layer_impl.cc
@@ -240,14 +240,13 @@ void VideoLayerImpl::AppendQuads(QuadSink* quad_sink,
       DCHECK_EQ(frame_resources_.size(), 1u);
       if (frame_resources_.size() < 1u)
         break;
-      gfx::Size visible_size(visible_rect.width(), visible_rect.height());
       scoped_ptr<IOSurfaceDrawQuad> io_surface_quad =
           IOSurfaceDrawQuad::Create();
       io_surface_quad->SetNew(shared_quad_state,
                               quad_rect,
                               opaque_rect,
                               visible_quad_rect,
-                              visible_size,
+                              visible_rect.size(),
                               frame_resources_[0],
                               IOSurfaceDrawQuad::UNFLIPPED);
       quad_sink->Append(io_surface_quad.PassAs<DrawQuad>());