Remove unused includes from core/html .cpp files

Source/core/html/InputType.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2009, 2010, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
@@ skipping 13 matching lines @@
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #include "config.h"
 #include "core/html/InputType.h"
 
 #include <limits>
 #include "HTMLNames.h"
 #include "core/accessibility/AXObjectCache.h"
-#include "core/dom/BeforeTextInsertedEvent.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExceptionCodePlaceholder.h"
 #include "core/dom/KeyboardEvent.h"
 #include "core/dom/NodeRenderStyle.h"
-#include "core/dom/shadow/ElementShadow.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/fileapi/FileList.h"
 #include "core/html/ButtonInputType.h"
 #include "core/html/CheckboxInputType.h"
 #include "core/html/ColorInputType.h"
 #include "core/html/DateInputType.h"
 #include "core/html/DateTimeLocalInputType.h"
 #include "core/html/EmailInputType.h"
 #include "core/html/FileInputType.h"
 #include "core/html/FormController.h"
@@ skipping 1051 matching lines @@
 
 void InputType::observeFeatureIfVisible(UseCounter::Feature feature) const
 {
     if (RenderStyle* style = element()->renderStyle()) {
         if (style->visibility() != HIDDEN)
             UseCounter::count(element()->document(), feature);
     }
 }
 
 } // namespace WebCore