Mac: Flip fullscreen low power layer geometry

ui/accelerated_widget_mac/accelerated_widget_mac.h

Index: ui/accelerated_widget_mac/accelerated_widget_mac.h
diff --git a/ui/accelerated_widget_mac/accelerated_widget_mac.h b/ui/accelerated_widget_mac/accelerated_widget_mac.h
index b14b6fb7e2a851c2947e99c1f2397a5f98633b08..ac4b03dea17383379f0b275c9349e9a375fc10ea 100644
--- a/ui/accelerated_widget_mac/accelerated_widget_mac.h
+++ b/ui/accelerated_widget_mac/accelerated_widget_mac.h
@@ -101,6 +101,7 @@ class ACCELERATED_WIDGET_MAC_EXPORT AcceleratedWidgetMac {
   // |background_layer_| of RenderWidgetHostViewCocoa) leads to unpredictable
   // behavior.
   base::scoped_nsobject<CALayer> flipped_layer_;
+  base::scoped_nsobject<CALayer> fslp_flipped_layer_;
 
   // A CALayer with content provided by the output surface.
   base::scoped_nsobject<CALayer> content_layer_;