From 86270b9476406ba10574897d5ba6ff08152e1107 Mon Sep 17 00:00:00 2001
From: Matt Woodrow <mwoodrow@mozilla.com>
Date: Tue, 4 Nov 2014 15:12:06 +1300
Subject: [PATCH] Bug 1086642 - Simplify invalid reigon by area. r=jrmuizel

---
 gfx/layers/client/ClientTiledPaintedLayer.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gfx/layers/client/ClientTiledPaintedLayer.h b/gfx/layers/client/ClientTiledPaintedLayer.h
index 6648a5e4fbe8..14ca1b066762 100644
--- a/gfx/layers/client/ClientTiledPaintedLayer.h
+++ b/gfx/layers/client/ClientTiledPaintedLayer.h
@@ -55,6 +55,7 @@ public:
   virtual Layer* AsLayer() { return this; }
   virtual void InvalidateRegion(const nsIntRegion& aRegion) {
     mInvalidRegion.Or(mInvalidRegion, aRegion);
+    mInvalidRegion.SimplifyOutwardByArea(200*200);
     mInvalidRegion.SimplifyOutward(20);
     mValidRegion.Sub(mValidRegion, mInvalidRegion);
     mLowPrecisionValidRegion.Sub(mLowPrecisionValidRegion, mInvalidRegion);