Commit instant loader when the instant page navigates away from instant URL.

chrome/browser/instant/instant_loader.h

 // Copyright 2012 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 CHROME_BROWSER_INSTANT_INSTANT_LOADER_H_
 #define CHROME_BROWSER_INSTANT_INSTANT_LOADER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 96 matching lines @@
 
   // Overridden from InstantClient::Delegate:
   virtual void SetSuggestions(
       const std::vector<InstantSuggestion>& suggestions) OVERRIDE;
   virtual void InstantSupportDetermined(bool supports_instant) OVERRIDE;
   virtual void ShowInstantPreview(InstantShownReason reason,
                                   int height,
                                   InstantSizeUnits units) OVERRIDE;
   virtual void StartCapturingKeyStrokes() OVERRIDE;
   virtual void StopCapturingKeyStrokes() OVERRIDE;
+  virtual void AboutToNavigateMainFrame(const GURL& url) OVERRIDE;
 
   // Overridden from content::NotificationObserver:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   void SetupPreviewContents();
   void CleanupPreviewContents();
   void ReplacePreviewContents(content::WebContents* old_contents,
                               content::WebContents* new_contents);
@@ skipping 11 matching lines @@
   bool is_pointer_down_from_activate_;
   history::HistoryAddPageArgs last_navigation_;
 
   // Used to get notifications about renderers coming and going.
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(InstantLoader);
 };
 
 #endif  // CHROME_BROWSER_INSTANT_INSTANT_LOADER_H_