Remove layerIsContainerForFixedPositionLayers.

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 634 matching lines @@
 
     updateContentsRect();
     updateBackgroundColor();
     updateDrawsContent();
     updateContentsOpaque();
     updateAfterWidgetResize();
     updateRenderingContext();
     updateShouldFlattenTransform();
     updateChildrenTransform();
     updateScrollParent(compositor()->preferCompositingToLCDTextEnabled() ? m_owningLayer.scrollParent() : 0);
-    registerScrollingLayers();
 
     updateCompositingReasons();
 }
 
 void CompositedLayerMapping::updateMainGraphicsLayerGeometry(const IntRect& relativeCompositingBounds, const IntRect& localCompositingBounds, const IntPoint& graphicsLayerParentLocation)
 {
     m_graphicsLayer->setPosition(FloatPoint(relativeCompositingBounds.location() - graphicsLayerParentLocation));
     m_graphicsLayer->setOffsetFromRenderer(toIntSize(localCompositingBounds.location()));
 
     FloatSize oldSize = m_graphicsLayer->size();
@@ skipping 246 matching lines @@
         backgroundSize = frameView->visibleContentRect().size();
     }
     m_backgroundLayer->setPosition(FloatPoint());
     if (backgroundSize != m_backgroundLayer->size()) {
         m_backgroundLayer->setSize(backgroundSize);
         m_backgroundLayer->setNeedsDisplay();
     }
     m_backgroundLayer->setOffsetFromRenderer(m_graphicsLayer->offsetFromRenderer());
 }
 
-void CompositedLayerMapping::registerScrollingLayers()
-{
-    // FIXME(sky): Remove this whole function. I think this doesn't do anything now that we don't support position:fixed.
-
-    // Register fixed position layers and their containers with the scrolling coordinator.
-    ScrollingCoordinator* scrollingCoordinator = scrollingCoordinatorFromLayer(m_owningLayer);
-    if (!scrollingCoordinator)
-        return;
-
-    // Page scale is applied as a transform on the root render view layer. Because the scroll
-    // layer is further up in the hierarchy, we need to avoid marking the root render view
-    // layer as a container.
-    bool isContainer = m_owningLayer.hasTransform() && !m_owningLayer.isRootLayer();
-    // FIXME: we should make certain that childForSuperLayers will never be the m_squashingContainmentLayer here
-    scrollingCoordinator->setLayerIsContainerForFixedPositionLayers(childForSuperlayers(), isContainer);
-}
-
 void CompositedLayerMapping::updateInternalHierarchy()
 {
     // m_foregroundLayer has to be inserted in the correct order with child layers,
     // so it's not inserted here.
     if (m_ancestorClippingLayer)
         m_ancestorClippingLayer->removeAllChildren();
 
     m_graphicsLayer->removeFromParent();
 
     if (m_ancestorClippingLayer)
@@ skipping 1295 matching lines @@
     } else if (graphicsLayer == m_scrollingBlockSelectionLayer.get()) {
         name = "Scrolling Block Selection Layer";
     } else {
         ASSERT_NOT_REACHED();
     }
 
     return name;
 }
 
 } // namespace blink