Remove setCompositingLayersNeedRebuild call in RenderLayer::styleChanged

Source/core/rendering/RenderLayer.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 327 matching lines @@
 
     RenderLayer* scrollParent() const;
     RenderLayer* clipParent() const;
 
     // Adjusts the given rect to the coordinate space of the repaint container's GraphicsLayer backing.
     void mapRectToRepaintBacking(const RenderLayerModelObject* repaintContainer, LayoutRect&) const;
 
     // Computes the bounding repaint rect for |renderObject|, in the coordinate space of |repaintContainer|'s GraphicsLayer backing.
     static LayoutRect computeRepaintRect(const RenderObject*, const RenderLayer* repaintContainer);
 
-    bool needsCompositingLayersRebuiltForClip(const RenderStyle* oldStyle, const RenderStyle* newStyle) const;
-    bool needsCompositingLayersRebuiltForOverflow(const RenderStyle* oldStyle, const RenderStyle* newStyle) const;
-    bool needsCompositingLayersRebuiltForFilters(const RenderStyle* oldStyle, const RenderStyle* newStyle) const;
-    bool needsCompositingLayersRebuiltForBlending(const RenderStyle* oldStyle, const RenderStyle* newStyle) const;
-
     bool paintsWithTransparency(PaintBehavior paintBehavior) const
     {
         return isTransparent() && ((paintBehavior & PaintBehaviorFlattenCompositingLayers) || compositingState() != PaintsIntoOwnBacking);
     }
 
     bool paintsWithTransform(PaintBehavior) const;
 
     // Returns true if background phase is painted opaque in the given rect.
     // The query rect is given in local coordinates.
     bool backgroundIsKnownToBeOpaqueInRect(const LayoutRect&) const;
@@ skipping 367 matching lines @@
 
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showLayerTree(const WebCore::RenderLayer*);
 void showLayerTree(const WebCore::RenderObject*);
 #endif
 
 #endif // RenderLayer_h