Move modules-dependent eventtarget code out of core.

Source/core/Init.h

 /*
  * Copyright (C) 2013 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 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef Init_h
 #define Init_h
 
 namespace WebCore {
 
-// Should be called by clients before trying to create Frames.
-void init();
+class CoreInitializer {
+public:
+    CoreInitializer() : m_isInited(false) { }
+    // Should be called by clients before trying to create Frames.
+    void init();
+    virtual void initEventTargetNames();
+
+private:
+    bool m_isInited;
+};
 
 void shutdown();
 
 } // namespace WebCore
 
 #endif // Init_h