Reset the state of the previous frame if overlay processing is skipped.

cc/output/overlay_processor.h

Index: cc/output/overlay_processor.h
diff --git a/cc/output/overlay_processor.h b/cc/output/overlay_processor.h
index 31e1ef54530ce76b863ebf7e0e13cfd32b09bcf2..6262893755bcd5854f7bc0c0e61a92bc27cc62e0 100644
--- a/cc/output/overlay_processor.h
+++ b/cc/output/overlay_processor.h
@@ -83,6 +83,7 @@ class CC_EXPORT OverlayProcessor {
       gfx::Rect* damage_rect);
   // Update |damage_rect| by removing damage casued by |candidates|.
   void UpdateDamageRect(OverlayCandidateList* candidates,
+                        const gfx::Rect& previous_frame_underlay_rect,
                         gfx::Rect* damage_rect);
 
   DCLayerOverlayProcessor dc_processor_;