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

chrome/browser/autocomplete/autocomplete_popup_model.h

Index: chrome/browser/autocomplete/autocomplete_popup_model.h
diff --git a/chrome/browser/autocomplete/autocomplete_popup_model.h b/chrome/browser/autocomplete/autocomplete_popup_model.h
index a986419fb56b24c16d42cc66c5320e54fb2defc5..8686bde18945648393b27b6a9d28641cc734ace1 100644
--- a/chrome/browser/autocomplete/autocomplete_popup_model.h
+++ b/chrome/browser/autocomplete/autocomplete_popup_model.h
@@ -12,6 +12,7 @@
 class AutocompleteEditModel;
 class AutocompleteEditView;
 class Profile;
+class SkBitmap;
 
 class AutocompletePopupView;
 
@@ -110,6 +111,10 @@ class AutocompletePopupModel : public NotificationObserver {
   // 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;