Not for review.

cc/output/compositor_frame_metadata.h

Index: cc/output/compositor_frame_metadata.h
diff --git a/cc/output/compositor_frame_metadata.h b/cc/output/compositor_frame_metadata.h
index c084151643b9b717db1f7192e176dbf1bb7b2e39..7d0c6e4fe93fbee0de94949bde6d396900c2213f 100644
--- a/cc/output/compositor_frame_metadata.h
+++ b/cc/output/compositor_frame_metadata.h
@@ -8,6 +8,7 @@
 #include "cc/base/cc_export.h"
 #include "ui/events/latency_info.h"
 #include "ui/gfx/size_f.h"
+#include "ui/gfx/rect.h"
 #include "ui/gfx/vector2d_f.h"
 
 namespace cc {
@@ -38,6 +39,9 @@ class CC_EXPORT CompositorFrameMetadata {
   gfx::Vector2dF location_bar_content_translation;
   float overdraw_bottom_height;
 
+  gfx::Rect overlay_position;
+  unsigned overlay_texture_id_;
+
   ui::LatencyInfo latency_info;
 };