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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_GOOGLE_GOOGLE_URL_TRACKER_NAVIGATION_HELPER_IMPL_H_
      6 #define CHROME_BROWSER_GOOGLE_GOOGLE_URL_TRACKER_NAVIGATION_HELPER_IMPL_H_
      7 
      8 #include "chrome/browser/google/google_url_tracker_navigation_helper.h"
      9 #include "content/public/browser/notification_observer.h"
     10 #include "content/public/browser/notification_registrar.h"
     11 #include "url/gurl.h"
     12 
     13 class GoogleURLTrackerNavigationHelperImpl
     14     : public GoogleURLTrackerNavigationHelper,
     15       public content::NotificationObserver {
     16  public:
     17   explicit GoogleURLTrackerNavigationHelperImpl();
     18   virtual ~GoogleURLTrackerNavigationHelperImpl();
     19 
     20   // GoogleURLTrackerNavigationHelper.
     21   virtual void SetGoogleURLTracker(GoogleURLTracker* tracker) OVERRIDE;
     22   virtual void SetListeningForNavigationStart(bool listen) OVERRIDE;
     23   virtual bool IsListeningForNavigationStart() OVERRIDE;
     24   virtual void SetListeningForNavigationCommit(
     25       const content::NavigationController* nav_controller,
     26       bool listen) OVERRIDE;
     27   virtual bool IsListeningForNavigationCommit(
     28       const content::NavigationController* nav_controller) OVERRIDE;
     29   virtual void SetListeningForTabDestruction(
     30       const content::NavigationController* nav_controller,
     31       bool listen) OVERRIDE;
     32   virtual bool IsListeningForTabDestruction(
     33       const content::NavigationController* nav_controller) OVERRIDE;
     34 
     35  private:
     36   friend class GoogleURLTrackerNavigationHelperTest;
     37 
     38   // content::NotificationObserver:
     39   virtual void Observe(int type,
     40                        const content::NotificationSource& source,
     41                        const content::NotificationDetails& details) OVERRIDE;
     42 
     43   // Returns a WebContents NavigationSource for the WebContents corresponding to
     44   // the given NavigationController NotificationSource.
     45   virtual content::NotificationSource GetWebContentsSource(
     46       const content::NotificationSource& nav_controller_source);
     47 
     48   GoogleURLTracker* tracker_;
     49   content::NotificationRegistrar registrar_;
     50 };
     51 
     52 #endif  // CHROME_BROWSER_GOOGLE_GOOGLE_URL_TRACKER_NAVIGATION_HELPER_IMPL_H_
     53