Add flag to signal that video frame must be drawn using an overlay.

cc/layers/video_layer_impl_unittest.cc

Index: cc/layers/video_layer_impl_unittest.cc
diff --git a/cc/layers/video_layer_impl_unittest.cc b/cc/layers/video_layer_impl_unittest.cc
index c4eee83ea262616d5c1c456d8c3713b90f297718..ead907eac775a8a92adbe41013fcfaddda6f29f2 100644
--- a/cc/layers/video_layer_impl_unittest.cc
+++ b/cc/layers/video_layer_impl_unittest.cc
@@ -349,6 +349,8 @@ TEST(VideoLayerImplTest, NativeYUVFrameGeneratesYUVQuad) {
   ASSERT_TRUE(video_frame);
   video_frame->metadata()->SetBoolean(media::VideoFrameMetadata::ALLOW_OVERLAY,
                                       true);
+  video_frame->metadata()->SetBoolean(
+      media::VideoFrameMetadata::REQUIRE_OVERLAY, true);
   FakeVideoFrameProvider provider;
   provider.set_frame(video_frame);
 
@@ -371,6 +373,7 @@ TEST(VideoLayerImplTest, NativeYUVFrameGeneratesYUVQuad) {
             (yuv_draw_quad->ya_tex_size.height() + 1) / 2);
   EXPECT_EQ(yuv_draw_quad->uv_tex_size.width(),
             (yuv_draw_quad->ya_tex_size.width() + 1) / 2);
+  EXPECT_TRUE(yuv_draw_quad->require_overlay);
 }
 
 }  // namespace