Bug 1110229 - bustage fix on a CLOSED TREE

gfx/layers/client/TiledContentClient.cpp

@@ -1489,7 +1489,7 @@ ClientTiledLayerBuffer::ComputeProgressiveUpdateRegion(const nsIntRegion& aInval
   while (true) {
     aRegionToPaint.And(aInvalidRegion, tileBounds);
     if (!aRegionToPaint.IsEmpty()) {
-      if (mResolution != CSSToParentLayerScale(1)) {
+      if (mResolution != 1) {
         // Paint the entire tile for low-res. This is aimed to fixing low-res resampling
         // and to avoid doing costly region accurate painting for a small area.
         aRegionToPaint = tileBounds;