alternate ntp: toolbar background and separator animation

chrome/browser/ui/views/search_view_controller.cc

 // 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.
 
 #include "chrome/browser/ui/views/search_view_controller.h"
 
 #include "chrome/browser/ui/search/search_model.h"
 #include "chrome/browser/ui/search/search_tab_helper.h"
 #include "chrome/browser/ui/search/search_types.h"
 #include "chrome/browser/ui/search/search_ui.h"
@@ skipping 277 matching lines @@
   }
 #else
   NOTIMPLEMENTED();
 #endif
   location_bar_container_->StackAtTop();
 }
 
 void SearchViewController::InstantReady() {
 }
 
-void SearchViewController::ModeChanged(const chrome::search::Mode& mode) {
+void SearchViewController::ModeChanged(const chrome::search::Mode& old_mode,
+                                       const chrome::search::Mode& new_mode) {
   UpdateState();
 }
 
 void SearchViewController::OnImplicitAnimationsCompleted() {
   DCHECK_EQ(STATE_ANIMATING, state_);
   state_ = STATE_SEARCH;
   ntp_view_->SetVisible(false);
   // While |ntp_view_| was fading out, location bar was animating from the
   // middle of the NTP page to the top toolbar, at the same rate.
   // Suggestions need to be aligned with the final location of the location bar.
@@ skipping 179 matching lines @@
       tab_contents_->search_tab_helper()->GetNTPWebContents());
 }
 
 chrome::search::SearchModel* SearchViewController::search_model() {
   return tab_contents_ ? tab_contents_->search_tab_helper()->model() : NULL;
 }
 
 content::WebContents* SearchViewController::web_contents() {
   return tab_contents_ ? tab_contents_->web_contents() : NULL;
 }