Use ContextMenu code path that was guarded by CROSS_PLATFORM_CONTEXT_MENU

Source/WebCore/inspector/InspectorFrontendHost.cpp

 /*
  * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Matt Lilek <webkit@mattlilek.com>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 71 matching lines @@
     {
         contextMenuCleared();
     }
     
     virtual void populateContextMenu(ContextMenu* menu)
     {
         for (size_t i = 0; i < m_items.size(); ++i)
             menu->appendItem(m_items[i]);
     }
     
-    virtual void contextMenuItemSelected(ContextMenuItem* item)
+    virtual void contextMenuItemSelected(const ContextMenuItem* item)
     {
         if (m_frontendHost) {
             UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture);
             int itemNumber = item->action() - ContextMenuItemBaseCustomTag;
 
             ScriptFunctionCall function(m_frontendApiObject, "contextMenuItemSelected");
             function.appendArgument(itemNumber);
             function.call();
         }
     }
@@ skipping 222 matching lines @@
 {
     return false;
 }
 
 String InspectorFrontendHost::hiddenPanels()
 {
     return "";
 }
 
 } // namespace WebCore