Don't aggregate quads outside of damage rect when using partial swap.

cc/surfaces/display.cc

Index: cc/surfaces/display.cc
diff --git a/cc/surfaces/display.cc b/cc/surfaces/display.cc
index 294dc5b4ff57d404f580f0efc6d155d539b1eaa1..654b37498f585e4a457092f56da32182642ab898 100644
--- a/cc/surfaces/display.cc
+++ b/cc/surfaces/display.cc
@@ -122,7 +122,12 @@ void Display::InitializeRenderer() {
   }
 
   resource_provider_ = resource_provider.Pass();
-  aggregator_.reset(new SurfaceAggregator(manager_, resource_provider_.get()));
+  // TODO(jbauman): Outputting an incomplete quad list doesn't work when using
+  // overlays.
+  bool output_partial_list = renderer_->Capabilities().using_partial_swap &&
+                             !output_surface_->GetOverlayCandidateValidator();
+  aggregator_.reset(new SurfaceAggregator(manager_, resource_provider_.get(),
+                                          output_partial_list));
 }
 
 void Display::DidLoseOutputSurface() {