Removing listening for repaints (OnUpdateRect) from OverscrollNavigationOverlay.

content/browser/web_contents/aura/overscroll_navigation_overlay.h

Index: content/browser/web_contents/aura/overscroll_navigation_overlay.h
diff --git a/content/browser/web_contents/aura/overscroll_navigation_overlay.h b/content/browser/web_contents/aura/overscroll_navigation_overlay.h
index e401e17680db2ea38a7b8ca9f9cd8858a147ca69..5cb333853f4e018dc6523397819d6c1f974a919d 100644
--- a/content/browser/web_contents/aura/overscroll_navigation_overlay.h
+++ b/content/browser/web_contents/aura/overscroll_navigation_overlay.h
@@ -79,9 +79,6 @@ class CONTENT_EXPORT OverscrollNavigationOverlay
   // NavigationEntry for the screenshot image to display.
   ui::Layer* CreateSlideLayer(int offset);
 
-  // IPC message callbacks.
-  void OnUpdateRect(const ViewHostMsg_UpdateRect_Params& params);
-
   // Overridden from WindowSlider::Delegate:
   virtual ui::Layer* CreateBackLayer() OVERRIDE;
   virtual ui::Layer* CreateFrontLayer() OVERRIDE;
@@ -91,10 +88,7 @@ class CONTENT_EXPORT OverscrollNavigationOverlay
   virtual void OnWindowSliderDestroyed() OVERRIDE;
 
   // Overridden from WebContentsObserver:
-  virtual void DocumentOnLoadCompletedInMainFrame() OVERRIDE;
   virtual void DidFirstVisuallyNonEmptyPaint() OVERRIDE;
-  virtual void DidStopLoading(RenderViewHost* host) OVERRIDE;
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // The WebContents which is being navigated.
   WebContentsImpl* web_contents_;
@@ -106,7 +100,6 @@ class CONTENT_EXPORT OverscrollNavigationOverlay
   // lifetime (destroys itself when |window_| is destroyed).
   ImageWindowDelegate* image_delegate_;
 
-  bool loading_complete_;
   bool received_paint_update_;
 
   // Unique ID of the NavigationEntry we are navigating to. This is needed to