Removed main-thread one dimensional scrolling paths.

third_party/WebKit/Source/core/frame/LocalFrame.h

Index: third_party/WebKit/Source/core/frame/LocalFrame.h
diff --git a/third_party/WebKit/Source/core/frame/LocalFrame.h b/third_party/WebKit/Source/core/frame/LocalFrame.h
index 71067fb04e22f2f5d6ec1c7deb7c318846cc822b..ba26f84ba269822c8cef5a0e9ac00ae611ef7818 100644
--- a/third_party/WebKit/Source/core/frame/LocalFrame.h
+++ b/third_party/WebKit/Source/core/frame/LocalFrame.h
@@ -172,7 +172,6 @@ public:
     // FIXME: once scroll customization is enabled everywhere
     // (crbug.com/416862), this should take a ScrollState object.
     ScrollResult applyScrollDelta(ScrollGranularity, const FloatSize& delta, bool isScrollBegin);
-    bool shouldScrollTopControls(const FloatSize& delta) const;
 
     // DisplayItemClient methods
     String debugName() const final { return "LocalFrame"; }
@@ -194,6 +193,8 @@ private:
 
     LocalFrame(FrameLoaderClient*, FrameHost*, FrameOwner*);
 
+    bool shouldScrollTopControls(const FloatSize& delta) const;
+
     // Internal Frame helper overrides:
     WindowProxyManager* windowProxyManager() const override;