Move overscroll logic out of EventHandler.

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

Index: third_party/WebKit/Source/core/frame/FrameHost.h
diff --git a/third_party/WebKit/Source/core/frame/FrameHost.h b/third_party/WebKit/Source/core/frame/FrameHost.h
index 40b416941eea8de38ce0ae55c125d62dc369e15b..27adcc19345066182696b1d5ad70945699dbb4e5 100644
--- a/third_party/WebKit/Source/core/frame/FrameHost.h
+++ b/third_party/WebKit/Source/core/frame/FrameHost.h
@@ -47,6 +47,7 @@ class ChromeClient;
 class ConsoleMessageStorage;
 class Deprecation;
 class EventHandlerRegistry;
+class OverscrollController;
 class Page;
 class PageScaleConstraintsSet;
 class Settings;
@@ -81,6 +82,7 @@ public:
     float deviceScaleFactor() const;
 
     TopControls& topControls() const;
+    OverscrollController& overscrollController() const;
     VisualViewport& visualViewport() const;
     PageScaleConstraintsSet& pageScaleConstraintsSet() const;
     EventHandlerRegistry& eventHandlerRegistry() const;
@@ -111,6 +113,7 @@ private:
     const Member<TopControls> m_topControls;
     const OwnPtr<PageScaleConstraintsSet> m_pageScaleConstraintsSet;
     const Member<VisualViewport> m_visualViewport;
+    const Member<OverscrollController> m_overscrollController;
     const Member<EventHandlerRegistry> m_eventHandlerRegistry;
     const Member<ConsoleMessageStorage> m_consoleMessageStorage;