Bug 1027794 - Don't copy the visible region when rendering. r=bjacob

2014-06-19 16:14:46 -04:00 · 2014-06-19 16:14:46 -04:00 · eb79d62834
--- a/gfx/layers/composite/ThebesLayerComposite.cpp
+++ b/gfx/layers/composite/ThebesLayerComposite.cpp
@ -133,7 +133,7 @@ ThebesLayerComposite::RenderLayer(const nsIntRect& aClipRect)
  LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(mMaskLayer, effectChain);
  AddBlendModeEffect(effectChain);

-  nsIntRegion visibleRegion = GetEffectiveVisibleRegion();
+  const nsIntRegion& visibleRegion = GetEffectiveVisibleRegion();

  TiledLayerProperties tiledLayerProps;
  if (mRequiresTiledProperties) {