alternate ntp: fix toolbar separator visibility when query is cleared

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"
 #include "chrome/browser/ui/search/toolbar_search_animator.h"
 
 class TabContents;
+class ToolbarModel;
 
 namespace chrome {
 namespace search {
 
 class SearchModel;
 
 // The SearchDelegate class acts as a helper to the Browser class.
 // It is responsible for routing the changes from the active tab's
 // 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);
+  SearchDelegate(SearchModel* browser_search_model,
+                 ToolbarModel* toolbar_model);
   virtual ~SearchDelegate();
 
   // Overrides for SearchModelObserver:
   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
@@ skipping 24 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_