Revert of Delete CompositingUpdateAfterLayout

Source/core/rendering/compositing/RenderLayerCompositor.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 31 matching lines @@
 class RenderLayerStackingNode;
 class RenderPart;
 class RenderVideo;
 class ScrollingCoordinator;
 class StickyPositionViewportConstraints;
 
 enum CompositingUpdateType {
     CompositingUpdateNone,
     CompositingUpdateOnCompositedScroll,
     CompositingUpdateAfterCompositingInputChange,
+    CompositingUpdateAfterLayout,
 };
 
 enum CompositingStateTransitionType {
     NoCompositingStateChange,
     AllocateOwnCompositedLayerMapping,
     RemoveOwnCompositedLayerMapping,
     PutInSquashingLayer,
     RemoveFromSquashingLayer
 };
 
@@ skipping 32 matching lines @@
     // Copy the accelerated compositing related flags from Settings
     void updateAcceleratedCompositingSettings();
 
     // Called when the layer hierarchy needs to be updated (compositing layers have been
     // created, destroyed or re-parented).
     void setCompositingLayersNeedRebuild();
 
     // Used to indicate that a compositing update will be needed for the next frame that gets drawn.
     void setNeedsCompositingUpdate(CompositingUpdateType);
 
-    void didLayout();
-
     enum UpdateLayerCompositingStateOptions {
         Normal,
         UseChickenEggHacks, // Use this to trigger temporary chicken-egg hacks. See crbug.com/339892.
     };
 
     // Update the compositing dirty bits, based on the compositing-impacting properties of the layer.
     void updateLayerCompositingState(RenderLayer*, UpdateLayerCompositingStateOptions = Normal);
 
     // Returns whether this layer is clipped by another layer that is not an ancestor of the given layer in the stacking context hierarchy.
     bool clippedByNonAncestorInStackingTree(const RenderLayer*) const;
@@ skipping 172 matching lines @@
     OwnPtr<GraphicsLayer> m_layerForVerticalScrollbar;
     OwnPtr<GraphicsLayer> m_layerForScrollCorner;
 #if USE(RUBBER_BANDING)
     OwnPtr<GraphicsLayer> m_layerForOverhangShadow;
 #endif
 };
 
 } // namespace WebCore
 
 #endif // RenderLayerCompositor_h