Adds ability to render omnibox as a view above the page.

chrome/browser/ui/views/toolbar_view.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_VIEWS_TOOLBAR_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_VIEW_H_
 #pragma once
 
 #include <set>
 #include <string>
@@ skipping 28 matching lines @@
                     public content::NotificationObserver,
                     public CommandUpdater::CommandObserver,
                     public views::ButtonListener {
  public:
   // The view class name.
   static const char kViewClassName[];
 
   explicit ToolbarView(Browser* browser);
   virtual ~ToolbarView();
 
-  // Create the contents of the Browser Toolbar
-  void Init();
+  // Create the contents of the Browser Toolbar. |popup_parent_view| is the
+  // View to add the omnibox popup view to.
+  // TODO(sky): clearly describe when |popup_parent_view| is used.
+  void Init(views::View* popup_parent_view);
 
   // Updates the toolbar (and transitively the location bar) with the states of
   // the specified |tab|.  If |should_restore_state| is true, we're switching
   // (back?) to this tab and should restore any previous location bar state
   // (such as user editing) as well.
   void Update(content::WebContents* tab, bool should_restore_state);
 
   // Set focus to the toolbar with complete keyboard access, with the
   // focus initially set to the app menu. Focus will be restored
   // to the last focused view if the user escapes.
@@ skipping 153 matching lines @@
 
   // A list of listeners to call when the menu opens.
   ObserverList<views::MenuListener> menu_listeners_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(ToolbarView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_VIEW_H_