alternate ntp: toolbar background and separator animation

chrome/browser/ui/search/search_model_observer_bridge.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_MODEL_OBSERVER_BRIDGE_H_
 #define CHROME_BROWSER_UI_SEARCH_SEARCH_MODEL_OBSERVER_BRIDGE_H_
 
 #include "chrome/browser/ui/search/search_model.h"
 #include "chrome/browser/ui/search/search_model_observer.h"
 
 namespace chrome {
 namespace search {
 
 template <class Receiver>
 class SearchModelObserverBridge : public SearchModelObserver {
  public:
   SearchModelObserverBridge(Receiver* receiver, SearchModel* model)
       : receiver_(receiver),
         model_(model) {
     model_->AddObserver(this);
   }
 
   ~SearchModelObserverBridge() {
     model_->RemoveObserver(this);
   }
 
   // SearchModelObserver:
-  virtual void ModeChanged(const Mode& mode) OVERRIDE {
-    [receiver_ modeChanged:mode];
+  virtual void ModeChanged(const Mode& old_mode,
+                           const Mode& new_mode) OVERRIDE {
+    [receiver_ modeChanged:old_mode newMode:new_mode];
   }
 
  private:
   // Weak.  Owns us.
   Receiver* receiver_;
 
   // Weak.
   SearchModel* model_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchModelObserverBridge);
 };
 
 }  // namespace search
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_SEARCH_SEARCH_MODEL_OBSERVER_BRIDGE_H_