Make the selection loop with arrow keys in the autocomplete popup

third_party/WebKit/WebCore/platform/chromium/PopupMenuChromium.h

 /*
  * Copyright (c) 2008, 2009, Google Inc. All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  * 
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 77 matching lines @@
         // new item is selected (by using the arrow keys).  Default is true.
         void setTextOnIndexChange(bool value);
 
         // Sets whether the selection should be accepted when the popup menu is
         // closed (through ESC being pressed or the focus going away).
         // Default is true.
         // Note that when TAB is pressed, the selection is always accepted
         // regardless of this setting.
         void setAcceptOnAbandon(bool value);
 
+        // Sets whether the we should move the selection to the first/last item
+        // when the user presses down/up arrow keys and the last/first item is
+        // selected.
+        // Default is false, causing the first/last item to stay selected.
+        void setLoopSelectionNavigation(bool value);
+
         PopupListBox* listBox() const { return m_listBox.get(); }
 
         // Refresh the popup values from the PopupMenuClient.
         void refresh();
 
     private:
         friend class WTF::RefCounted<PopupContainer>;
 
         PopupContainer(PopupMenuClient*, bool focusOnShow);
         ~PopupContainer();
 
         // Paint the border.
         void paintBorder(GraphicsContext*, const IntRect&);
 
         RefPtr<PopupListBox> m_listBox;
 
         // Whether the window showing this popup should be focused when shown.
         bool m_focusOnShow;
     };
 
 } // namespace WebCore
 
 #endif