Remove ~1750 superfluous includes from core

Source/core/html/shadow/DateTimeFieldElement.cpp

 /*
  * Copyright (C) 2012 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 12 matching lines @@
  * SUCH DAMAGE.
  */
 
 #include "config.h"
 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
 #include "core/html/shadow/DateTimeFieldElement.h"
 
 #include "HTMLNames.h"
 #include "core/dom/KeyboardEvent.h"
 #include "core/dom/Text.h"
-#include "core/platform/DateComponents.h"
 #include "core/platform/LocalizedStrings.h"
 #include "core/platform/text/PlatformLocale.h"
-#include "core/rendering/RenderObject.h"
 #include <wtf/text/WTFString.h>
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 DateTimeFieldElement::FieldOwner::~FieldOwner()
 {
 }
 
@@ skipping 191 matching lines @@
 }
 
 int DateTimeFieldElement::valueForARIAValueNow() const
 {
     return valueAsInteger();
 }
 
 } // namespace WebCore
 
 #endif