Bug 1326579: Add some needed includes in layout/painting, to preemptively fix unified bustage. r=xidorn

MozReview-Commit-ID: G8Ax9cVtOFP

--HG--
extra : rebase_source : 43e1d274e169bb8139d3ac867791aa638a2ea33f

layout/painting/MaskLayerImageCache.cpp

@@ -4,7 +4,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "MaskLayerImageCache.h"
+
 #include "ImageContainer.h"
+#include "mozilla/layers/ShadowLayers.h"
 
 using namespace mozilla::layers;
 

layout/painting/nsCSSRendering.cpp

@@ -21,6 +21,7 @@
 #include "nsStyleConsts.h"
 #include "nsPresContext.h"
 #include "nsIFrame.h"
+#include "nsIFrameInlines.h"
 #include "nsPoint.h"
 #include "nsRect.h"
 #include "nsIPresShell.h"