alternate ntp: toolbar background and separator animation

chrome/browser/ui/search/search_tab_helper.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 CHROME_BROWSER_UI_SEARCH_SEARCH_TAB_HELPER_H_
 #define CHROME_BROWSER_UI_SEARCH_SEARCH_TAB_HELPER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/search/search_model.h"
@@ skipping 35 matching lines @@
       const GURL& url,
       content::NavigationController::ReloadType reload_type) OVERRIDE;
 
   // Overridden from content::NotificationObserver:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
  private:
   // Sets the mode of the model based on |url|.
-  void UpdateModel(const GURL& url);
+  // |animate| is flag in model's mode.
+  void UpdateModel(const GURL& url, bool animate);
 
   // On navigation away from NTP and Search pages, delete |ntp_web_contents_|.
   void FlushNTP(const GURL& url);
 
   const bool is_search_enabled_;
 
   // Model object for UI that cares about search state.
   SearchModel model_;
 
   // Lazily created web contents for NTP.
   scoped_ptr<content::WebContents> ntp_web_contents_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchTabHelper);
 };
 
 }  // namespace search
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_SEARCH_SEARCH_TAB_HELPER_H_