Remove WebPopupMenu, WebPopupTypeSelect, and WebPopupTypeSuggestion.

public/web/WebPopupType.h

 /*
  * Copyright (C) 2010 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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebPopupType_h
 #define WebPopupType_h
 
 namespace blink {
 
 enum WebPopupType {
     WebPopupTypeNone, // Not a popup.
-    WebPopupTypeSelect, // An HTML select (combo-box) popup.
-    WebPopupTypeSuggestion, // An autofill/autocomplete popup.
     WebPopupTypePage, // An HTML-capable popup.
     WebPopupTypeLast = WebPopupTypePage
 };
 
 } // namespace blink
 
 #endif