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

content/public/browser/web_contents_observer.h

 // Copyright (c) 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 CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_
 
 #include "base/process_util.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/navigation_controller.h"
@@ skipping 82 matching lines @@
 
   virtual void DidGetUserGesture() {}
   virtual void DidGetIgnoredUIEvent() {}
   virtual void StopNavigation() {}
 
   virtual void DidOpenURL(const GURL& url,
                           const Referrer& referrer,
                           WindowOpenDisposition disposition,
                           PageTransition transition) {}
 
+  virtual void AboutToOpenURL(const GURL& url) {}

[sky, 2012/12/06 22:37:29]

Add description.

[Shishir, 2012/12/06 23:20:30]

Not sure how useful it is, but added.

+
   virtual void DidOpenRequestedURL(WebContents* new_contents,
                                    const GURL& url,
                                    const Referrer& referrer,
                                    WindowOpenDisposition disposition,
                                    PageTransition transition,
                                    int64 source_frame_id) {}
 
   virtual void WasShown() {}
 
   virtual void AppCacheAccessed(const GURL& manifest_url,
@@ skipping 66 matching lines @@
   void WebContentsImplDestroyed();
 
   WebContentsImpl* web_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_