Bug 1030370. We should be looking at the layer data for the frame we are looping over in the loop, not the starting frame each time in FrameLayerBuilder::GetThebesLayerScaleForFrame. r=mattwoodrow

layout/base/FrameLayerBuilder.cpp

@@ -3522,7 +3522,7 @@ FrameLayerBuilder::GetThebesLayerScaleForFrame(nsIFrame* aFrame)
     }
 
     nsTArray<DisplayItemData*> *array =
-      reinterpret_cast<nsTArray<DisplayItemData*>*>(aFrame->Properties().Get(LayerManagerDataProperty()));
+      reinterpret_cast<nsTArray<DisplayItemData*>*>(f->Properties().Get(LayerManagerDataProperty()));
     if (!array) {
       continue;
     }