Use Chrome facilities for omnibox state save and restore on Mac.

chrome/browser/cocoa/location_bar_view_mac.h

Index: chrome/browser/cocoa/location_bar_view_mac.h
diff --git a/chrome/browser/cocoa/location_bar_view_mac.h b/chrome/browser/cocoa/location_bar_view_mac.h
index ee9cf26d9dc82a2905a6f23e0e9a5870ac1b91eb..12f32fadb72f21d70b82dcfdbafd77d5ed8835c8 100644
--- a/chrome/browser/cocoa/location_bar_view_mac.h
+++ b/chrome/browser/cocoa/location_bar_view_mac.h
@@ -46,6 +46,11 @@ class LocationBarViewMac : public AutocompleteEditController,
     return edit_view_.get();
   }
 
+  // Updates the location bar.  Resets the bar's permanent text and
+  // security style, and if |should_restore_state| is true, restores
+  // saved state from the tab (for tab switching).
+  void Update(const TabContents* tab, bool should_restore_state);
+
   virtual void OnAutocompleteAccept(const GURL& url,
       WindowOpenDisposition disposition,
       PageTransition::Type transition,