OverscrollGlow for mainThread-{CHROMIUM CHANGES}

content/renderer/render_widget.h

Index: content/renderer/render_widget.h
diff --git a/content/renderer/render_widget.h b/content/renderer/render_widget.h
index ecd41bbede2e548563f17326dff638dfe93a4f13..dc15d7a654604cd0e781d339e6ddb04fc2be846c 100644
--- a/content/renderer/render_widget.h
+++ b/content/renderer/render_widget.h
@@ -189,6 +189,15 @@ class CONTENT_EXPORT RenderWidget
   virtual void resetInputMethod();
   virtual void didHandleGestureEvent(const blink::WebGestureEvent& event,
                                      bool event_cancelled);
+  virtual void didOverScrollOnMainThread(const float& unusedDeltaX,
+                                         const float& unusedDeltaY,
+                                         const float& accumaltedRootOverScrollX,
+                                         const float& accumaltedRootOverScrollY,
+                                         const float& positionX,
+                                         const float& positionY,
+                                         const float& velocityX,
+                                         const float& velocityY);
+
   virtual void showImeIfNeeded();
 
 #if defined(OS_ANDROID)