Remove CSSCompositing

sky/engine/core/rendering/compositing/CompositedLayerMapping.cpp

 /*
  * Copyright (C) 2009, 2010, 2011 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 161 matching lines @@
     return graphicsLayer.release();
 }
 
 void CompositedLayerMapping::createPrimaryGraphicsLayer()
 {
     m_graphicsLayer = createGraphicsLayer(m_owningLayer.compositingReasons());
 
     updateOpacity(renderer()->style());
     updateTransform(renderer()->style());
     updateFilters(renderer()->style());
-
-    if (RuntimeEnabledFeatures::cssCompositingEnabled()) {
-        updateLayerBlendMode(renderer()->style());
-        updateIsRootForIsolatedGroup();
-    }
 }
 
 void CompositedLayerMapping::destroyGraphicsLayers()
 {
     if (m_graphicsLayer)
         m_graphicsLayer->removeFromParent();
 
     m_ancestorClippingLayer = nullptr;
     m_graphicsLayer = nullptr;
     m_foregroundLayer = nullptr;
@@ skipping 20 matching lines @@
     }
 
     m_graphicsLayer->setTransform(t);
 }
 
 void CompositedLayerMapping::updateFilters(const RenderStyle* style)
 {
     m_graphicsLayer->setFilters(owningLayer().computeFilterOperations(style));
 }
 
-void CompositedLayerMapping::updateLayerBlendMode(const RenderStyle* style)
-{
-    setBlendMode(style->blendMode());
-}
-
-void CompositedLayerMapping::updateIsRootForIsolatedGroup()
-{
-    bool isolate = m_owningLayer.shouldIsolateCompositedDescendants();
-
-    // non stacking context layers should never isolate
-    ASSERT(m_owningLayer.stackingNode()->isStackingContext() || !isolate);
-
-    m_graphicsLayer->setIsRootForIsolatedGroup(isolate);
-}
-
 void CompositedLayerMapping::updateContentsOpaque()
 {
     // For non-root layers, background is always painted by the primary graphics layer.
     ASSERT(!m_backgroundLayer);
     if (m_backgroundLayer) {
         m_graphicsLayer->setContentsOpaque(false);
         m_backgroundLayer->setContentsOpaque(m_owningLayer.backgroundIsKnownToBeOpaqueInRect(compositedBounds()));
     } else {
         m_graphicsLayer->setContentsOpaque(m_owningLayer.backgroundIsKnownToBeOpaqueInRect(compositedBounds()));
     }
@@ skipping 320 matching lines @@
 
     updateMaskLayerGeometry();
     updateTransformGeometry(snappedOffsetFromCompositedAncestor, relativeCompositingBounds);
     updateForegroundLayerGeometry(contentsSize, clippingBox);
     updateBackgroundLayerGeometry(contentsSize);
     updateChildClippingMaskLayerGeometry();
 
     if (m_owningLayer.scrollableArea() && m_owningLayer.scrollableArea()->scrollsOverflow())
         m_owningLayer.scrollableArea()->positionOverflowControls(IntSize());
 
-    if (RuntimeEnabledFeatures::cssCompositingEnabled()) {
-        updateLayerBlendMode(renderer()->style());
-        updateIsRootForIsolatedGroup();
-    }
-
     updateContentsRect();
     updateBackgroundColor();
     updateDrawsContent();
     updateContentsOpaque();
     updateRenderingContext();
     updateShouldFlattenTransform();
     updateChildrenTransform();
 
     updateCompositingReasons();
 }
@@ skipping 1222 matching lines @@
     } else if (graphicsLayer == m_overflowControlsClippingLayer.get()) {
         name = "Overflow Controls ClipLayer Layer";
     } else {
         ASSERT_NOT_REACHED();
     }
 
     return name;
 }
 
 } // namespace blink