cc: Fullscreen overlay removes all the other quads/planes.

cc/output/overlay_strategy_fullscreen.cc

Index: cc/output/overlay_strategy_fullscreen.cc
diff --git a/cc/output/overlay_strategy_fullscreen.cc b/cc/output/overlay_strategy_fullscreen.cc
index 7cc8b7d9082ea1ad9bfd71568fb046d83ce5c746..9bc6cd61ad9889035a47770343abecab8afe9d6a 100644
--- a/cc/output/overlay_strategy_fullscreen.cc
+++ b/cc/output/overlay_strategy_fullscreen.cc
@@ -48,10 +48,12 @@ bool OverlayStrategyFullscreen::Attempt(ResourceProvider* resource_provider,
     return false;
   }
 
-  candidate.plane_z_order = 1;
+  candidate.plane_z_order = 0;
   candidate.overlay_handled = true;
-  candidate_list->push_back(candidate);
-  quad_list->EraseAndInvalidateAllPointers(front);
+  OverlayCandidateList new_candidate_list;
+  new_candidate_list.push_back(candidate);
+  candidate_list->swap(new_candidate_list);
+  render_pass->quad_list = QuadList();  // Remove all the quads
   return true;
 }