Remove the CSS_COMPOSITING define, the CSS blending and compositing

WebCore/rendering/RenderLayer.cpp

Index: WebCore/rendering/RenderLayer.cpp
===================================================================
--- WebCore/rendering/RenderLayer.cpp	(revision 148420)
+++ WebCore/rendering/RenderLayer.cpp	(working copy)
@@ -173,9 +173,7 @@
 #if ENABLE(CSS_FILTERS)
     , m_hasFilterInfo(false)
 #endif
-#if ENABLE(CSS_COMPOSITING)
     , m_blendMode(BlendModeNormal)
-#endif
     , m_renderer(renderer)
     , m_parent(0)
     , m_previous(0)
@@ -789,7 +787,6 @@
     positionOverflowControls(toIntSize(roundedIntPoint(offsetFromRoot)));
 }
 
-#if ENABLE(CSS_COMPOSITING)
 void RenderLayer::updateBlendMode()
 {
     BlendMode newBlendMode = renderer()->style()->blendMode();
@@ -799,7 +796,6 @@
             backing()->setBlendMode(newBlendMode);
     }
 }
-#endif
 
 void RenderLayer::updateTransform()
 {
@@ -5369,9 +5365,7 @@
 #if ENABLE(CSS_FILTERS)
         updateOrRemoveFilterEffectRenderer();
 #endif
-#if ENABLE(CSS_COMPOSITING)
         backing()->setBlendMode(m_blendMode);
-#endif
     }
     return m_backing.get();
 }
@@ -5711,9 +5705,7 @@
 #if ENABLE(CSS_FILTERS)
             && !renderer()->hasFilter()
 #endif
-#if ENABLE(CSS_COMPOSITING)
             && !renderer()->hasBlendMode()
-#endif
             && !isTransparent()
             && !needsCompositedScrolling()
 #if ENABLE(CSS_EXCLUSIONS)
@@ -6033,9 +6025,7 @@
 
     updateDescendantDependentFlags();
     updateTransform();
-#if ENABLE(CSS_COMPOSITING)
     updateBlendMode();
-#endif
 
     bool didPaintWithFilters = false;