First pass at experimental omnibox API. There are plenty of rough edges and

chrome/browser/cocoa/location_bar_view_mac.h

 // Copyright (c) 2010 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_COCOA_LOCATION_BAR_VIEW_MAC_H_
 #define CHROME_BROWSER_COCOA_LOCATION_BAR_VIEW_MAC_H_
 
 #include <string>
 #include <map>
 #include <vector>
@@ skipping 116 matching lines @@
   NSImage* GetTabButtonImage();
   AutocompleteTextField* GetAutocompleteTextField() { return field_; }
 
   // Internals of OnChanged(), pulled out for purposes of unit
   // testing.  Sets up |field| based on the parameters, which are
   // pulled from edit_view->model().
   static void OnChangedImpl(AutocompleteTextField* field,
                             const std::wstring& keyword,
                             const std::wstring& short_name,
                             const bool is_keyword_hint,
+                            const bool is_extension_keyword,
                             NSImage* image);
 
   // Overridden from NotificationObserver.
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   // Used to display a clickable icon in the location bar.
   class LocationBarImageView {
    public:
@@ skipping 321 matching lines @@
   // The transition type to use for the navigation.
   PageTransition::Type transition_;
 
   // Used to register for notifications received by NotificationObserver.
   NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(LocationBarViewMac);
 };
 
 #endif  // CHROME_BROWSER_COCOA_LOCATION_BAR_VIEW_MAC_H_