Purge the ScrollBlocksOn code.

third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp

 /*
  * Copyright (C) 2009 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 78 matching lines @@
 PassOwnPtr<GraphicsLayer> GraphicsLayer::create(GraphicsLayerFactory* factory, GraphicsLayerClient* client)
 {
     return factory->createGraphicsLayer(client);
 }
 
 GraphicsLayer::GraphicsLayer(GraphicsLayerClient* client)
     : m_client(client)
     , m_backgroundColor(Color::transparent)
     , m_opacity(1)
     , m_blendMode(WebBlendModeNormal)
-    , m_scrollBlocksOn(WebScrollBlocksOnNone)
     , m_hasTransformOrigin(false)
     , m_contentsOpaque(false)
     , m_shouldFlattenTransform(true)
     , m_backfaceVisibility(true)
     , m_masksToBounds(false)
     , m_drawsContent(false)
     , m_contentsVisible(true)
     , m_isRootForIsolatedGroup(false)
     , m_hasScrollParent(false)
     , m_hasClipParent(false)
@@ skipping 14 matching lines @@
 {
 #if ENABLE(ASSERT)
     if (m_client)
         m_client->verifyNotPainting();
 #endif
 
     m_contentLayerDelegate = adoptPtr(new ContentLayerDelegate(this));
     m_layer = adoptPtr(Platform::current()->compositorSupport()->createContentLayer(m_contentLayerDelegate.get()));
     m_layer->layer()->setDrawsContent(m_drawsContent && m_contentsVisible);
     m_layer->layer()->setLayerClient(this);
-
-    // TODO(rbyers): Expose control over this to the web - crbug.com/489802:
-    setScrollBlocksOn(WebScrollBlocksOnStartTouch | WebScrollBlocksOnWheelEvent);
 }
 
 GraphicsLayer::~GraphicsLayer()
 {
     for (size_t i = 0; i < m_linkHighlights.size(); ++i)
         m_linkHighlights[i]->clearCurrentGraphicsLayer();
     m_linkHighlights.clear();
 
 #if ENABLE(ASSERT)
     if (m_client)
@@ skipping 856 matching lines @@
 }
 
 void GraphicsLayer::setBlendMode(WebBlendMode blendMode)
 {
     if (m_blendMode == blendMode)
         return;
     m_blendMode = blendMode;
     platformLayer()->setBlendMode(blendMode);
 }
 
-void GraphicsLayer::setScrollBlocksOn(WebScrollBlocksOn scrollBlocksOn)
-{
-    if (m_scrollBlocksOn == scrollBlocksOn)
-        return;
-    m_scrollBlocksOn = scrollBlocksOn;
-    platformLayer()->setScrollBlocksOn(scrollBlocksOn);
-}
-
 void GraphicsLayer::setIsRootForIsolatedGroup(bool isolated)
 {
     if (m_isRootForIsolatedGroup == isolated)
         return;
     m_isRootForIsolatedGroup = isolated;
     platformLayer()->setIsRootForIsolatedGroup(isolated);
 }
 
 void GraphicsLayer::setContentsNeedsDisplay()
 {
@@ skipping 233 matching lines @@
 {
     if (!layer) {
         fprintf(stderr, "Cannot showGraphicsLayerTree for (nil).\n");
         return;
     }
 
     String output = layer->layerTreeAsText(blink::LayerTreeIncludesDebugInfo);
     fprintf(stderr, "%s\n", output.utf8().data());
 }
 #endif