alternate ntp: toolbar background and separator animation

chrome/browser/ui/search/search_delegate.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_DELEGATE_H_
 #define CHROME_BROWSER_UI_SEARCH_SEARCH_DELEGATE_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/ui/search/search_model_observer.h"
@@ skipping 11 matching lines @@
 // SearchModel through to the toolbar, tabstrip and other UI
 // observers.
 // Changes are propagated from the active tab's model via this class to the
 // Browser-level model.
 class SearchDelegate : public SearchModelObserver {
  public:
   explicit SearchDelegate(SearchModel* model);
   virtual ~SearchDelegate();
 
   // Overrides for SearchModelObserver:
-  virtual void ModeChanged(const Mode& mode) OVERRIDE;
+  virtual void ModeChanged(const Mode& old_mode, const Mode& new_mode) OVERRIDE;
 
   // When the active tab is changed, the model state of this new active tab is
   // propagated to the browser.
   void OnTabActivated(TabContents* contents);
 
   // When a tab is deactivated, this class no longer observes changes to the
   // tab's model.
   void OnTabDeactivated(TabContents* contents);
 
   // When a tab is detached, this class no longer observes changes to the
@@ skipping 20 matching lines @@
   // NTP to SEARCH.
   ToolbarSearchAnimator toolbar_search_animator_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchDelegate);
 };
 
 }  // namespace search
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_SEARCH_SEARCH_DELEGATE_H_