Include Event.h in fewer header files

Source/core/html/ime/InputMethodContext.cpp

 /*
  * 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 16 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/html/ime/InputMethodContext.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Text.h"
 #include "core/editing/InputMethodController.h"
+#include "core/events/Event.h"
 #include "core/frame/LocalFrame.h"
 
 namespace WebCore {
 
 PassOwnPtrWillBeRawPtr<InputMethodContext> InputMethodContext::create(HTMLElement* element)
 {
     return adoptPtrWillBeRefCountedGarbageCollected(new InputMethodContext(element));
 }
 
 InputMethodContext::InputMethodContext(HTMLElement* element)
@@ skipping 139 matching lines @@
     dispatchEvent(Event::create(EventTypeNames::candidatewindowhide));
 }
 
 void InputMethodContext::trace(Visitor* visitor)
 {
     visitor->trace(m_element);
     EventTargetWithInlineData::trace(visitor);
 }
 
 } // namespace WebCore