Use the extension icon for extension omnibox results instead of the generic

chrome/browser/autocomplete/autocomplete_popup_model.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_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_MODEL_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_MODEL_H_
 
 #include "base/scoped_ptr.h"
 #include "chrome/browser/autocomplete/autocomplete.h"
 #include "chrome/common/notification_registrar.h"
 
 class AutocompleteEditModel;
 class AutocompleteEditView;
 class Profile;
+class SkBitmap;
 
 class AutocompletePopupView;
 
 class AutocompletePopupModel : public NotificationObserver {
  public:
   AutocompletePopupModel(AutocompletePopupView* popup_view,
                          AutocompleteEditModel* edit_model,
                          Profile* profile);
   ~AutocompletePopupModel();
 
@@ skipping 78 matching lines @@
   // current selection down (|count| > 0) or up (|count| < 0), clamping to the
   // first or last result if necessary.  If |count| == 0, the selection will be
   // unchanged, but the popup will still redraw and modify the text in the
   // AutocompleteEditModel.
   void Move(int count);
 
   // Called when the user hits shift-delete.  This should determine if the item
   // can be removed from history, and if so, remove it and update the popup.
   void TryDeletingCurrentItem();
 
+  // Returns the special icon to use for a given match, or NULL if we should
+  // use a standard style icon.
+  const SkBitmap* GetSpecialIconForMatch(const AutocompleteMatch& match) const;
+
   // The token value for selected_line_, hover_line_ and functions dealing with
   // a "line number" that indicates "no line".
   static const size_t kNoMatch = -1;
 
  private:
   // NotificationObserver
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
@@ skipping 15 matching lines @@
   // which should only be true when the popup is closed.
   size_t selected_line_;
 
   // The match the user has manually chosen, if any.
   AutocompleteResult::Selection manually_selected_match_;
 
   DISALLOW_COPY_AND_ASSIGN(AutocompletePopupModel);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_MODEL_H_