Use entry URLs instead of entry IDs to determine when to dismiss the overscroll overlay.

content/browser/web_contents/aura/overscroll_navigation_overlay.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_AURA_OVERSCROLL_NAVIGATION_OVERLAY_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_AURA_OVERSCROLL_NAVIGATION_OVERLAY_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "content/browser/web_contents/aura/window_slider.h"
@@ skipping 83 matching lines @@
   // The screenshot overlay window.
   scoped_ptr<aura::Window> window_;
 
   // This is the WindowDelegate of |window_|. The delegate manages its own
   // 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
+  // URL of the NavigationEntry we are navigating to. This is needed to
   // filter on WebContentsObserver callbacks and is used to dismiss the overlay
   // when the relevant page loads and paints.
-  int pending_entry_id_;
+  GURL pending_entry_url_;
 
   // The |WindowSlider| that allows sliding history layers while the page is
   // being reloaded.
   scoped_ptr<WindowSlider> window_slider_;
 
   // Layer to be used for the final overlay fadeout animation when the overlay
   // is being dismissed.
   scoped_ptr<ui::Layer> overlay_dismiss_layer_;
 
   // The direction of the in-progress slide (if any).
   SlideDirection slide_direction_;
 
   // The LayerDelegate used for the back/front layers during a slide.
   scoped_ptr<ImageLayerDelegate> layer_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(OverscrollNavigationOverlay);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_AURA_OVERSCROLL_NAVIGATION_OVERLAY_H_