Remove scroll corners and resizers.

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

 /*
  * Copyright (C) 2009, 2010 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 611 matching lines @@
     // FIXME(sky): Remove
     return false;
 }
 
 bool RenderLayerCompositor::requiresVerticalScrollbarLayer() const
 {
     // FIXME(sky): Remove
     return false;
 }
 
-bool RenderLayerCompositor::requiresScrollCornerLayer() const
-{
-    // FIXME(sky): Remove
-    return false;
-}
-
 void RenderLayerCompositor::updateOverflowControlsLayers()
 {
     GraphicsLayer* controlsParent = m_rootTransformLayer.get() ? m_rootTransformLayer.get() : m_overflowControlsHostLayer.get();
 
     if (requiresHorizontalScrollbarLayer()) {
         if (!m_layerForHorizontalScrollbar) {
             m_layerForHorizontalScrollbar = GraphicsLayer::create(graphicsLayerFactory(), this);
         }
 
         if (m_layerForHorizontalScrollbar->parent() != controlsParent) {
             controlsParent->addChild(m_layerForHorizontalScrollbar.get());
         }
     } else if (m_layerForHorizontalScrollbar) {
         m_layerForHorizontalScrollbar->removeFromParent();
         m_layerForHorizontalScrollbar = nullptr;
     }
 
     if (requiresVerticalScrollbarLayer()) {
         if (!m_layerForVerticalScrollbar) {
             m_layerForVerticalScrollbar = GraphicsLayer::create(graphicsLayerFactory(), this);
         }
 
         if (m_layerForVerticalScrollbar->parent() != controlsParent) {
             controlsParent->addChild(m_layerForVerticalScrollbar.get());
         }
     } else if (m_layerForVerticalScrollbar) {
         m_layerForVerticalScrollbar->removeFromParent();
         m_layerForVerticalScrollbar = nullptr;
     }
-
-    if (requiresScrollCornerLayer()) {
-        if (!m_layerForScrollCorner) {
-            m_layerForScrollCorner = GraphicsLayer::create(graphicsLayerFactory(), this);
-            controlsParent->addChild(m_layerForScrollCorner.get());
-        }
-    } else if (m_layerForScrollCorner) {
-        m_layerForScrollCorner->removeFromParent();
-        m_layerForScrollCorner = nullptr;
-    }
 }
 
 void RenderLayerCompositor::ensureRootLayer()
 {
     RootLayerAttachment expectedAttachment = RootLayerAttachedViaChromeClient;
     if (expectedAttachment == m_rootLayerAttachment)
          return;
 
     if (!m_rootContentLayer) {
         m_rootContentLayer = GraphicsLayer::create(graphicsLayerFactory(), this);
@@ skipping 49 matching lines @@
     if (m_layerForHorizontalScrollbar) {
         m_layerForHorizontalScrollbar->removeFromParent();
         m_layerForHorizontalScrollbar = nullptr;
     }
 
     if (m_layerForVerticalScrollbar) {
         m_layerForVerticalScrollbar->removeFromParent();
         m_layerForVerticalScrollbar = nullptr;
     }
 
-    if (m_layerForScrollCorner) {
-        m_layerForScrollCorner = nullptr;
-    }
-
     if (m_overflowControlsHostLayer) {
         m_overflowControlsHostLayer = nullptr;
         m_containerLayer = nullptr;
         m_scrollLayer = nullptr;
     }
     ASSERT(!m_scrollLayer);
     m_rootContentLayer = nullptr;
     m_rootTransformLayer = nullptr;
 }
 
@@ skipping 82 matching lines @@
     if (graphicsLayer == m_rootContentLayer.get()) {
         name = "Content Root Layer";
     } else if (graphicsLayer == m_rootTransformLayer.get()) {
         name = "Root Transform Layer";
     } else if (graphicsLayer == m_overflowControlsHostLayer.get()) {
         name = "Overflow Controls Host Layer";
     } else if (graphicsLayer == m_layerForHorizontalScrollbar.get()) {
         name = "Horizontal Scrollbar Layer";
     } else if (graphicsLayer == m_layerForVerticalScrollbar.get()) {
         name = "Vertical Scrollbar Layer";
-    } else if (graphicsLayer == m_layerForScrollCorner.get()) {
-        name = "Scroll Corner Layer";
     } else if (graphicsLayer == m_containerLayer.get()) {
         name = "LocalFrame Clipping Layer";
     } else if (graphicsLayer == m_scrollLayer.get()) {
         name = "LocalFrame Scrolling Layer";
     } else {
         ASSERT_NOT_REACHED();
     }
 
     return name;
 }
 
 } // namespace blink