Purge the ScrollBlocksOn code.

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

Index: third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp b/third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp
index f0e32bf0aac4449d93e7cd246539743bd417ee8d..2ba8104216248a8ce57dea7de4b3e321142a4e0f 100644
--- a/third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp
+++ b/third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp
@@ -96,7 +96,6 @@ GraphicsLayer::GraphicsLayer(GraphicsLayerClient* client)
     , m_backgroundColor(Color::transparent)
     , m_opacity(1)
     , m_blendMode(WebBlendModeNormal)
-    , m_scrollBlocksOn(WebScrollBlocksOnNone)
     , m_hasTransformOrigin(false)
     , m_contentsOpaque(false)
     , m_shouldFlattenTransform(true)
@@ -131,9 +130,6 @@ GraphicsLayer::GraphicsLayer(GraphicsLayerClient* client)
     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()
@@ -1010,14 +1006,6 @@ void GraphicsLayer::setBlendMode(WebBlendMode 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)