Remove ~1750 superfluous includes from core

Source/core/html/SearchInputType.cpp

 /*
  * Copyright (C) 2010 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.
  */
 
 #include "config.h"
 #include "core/html/SearchInputType.h"
 
 #include "HTMLNames.h"
 #include "core/dom/KeyboardEvent.h"
-#include "core/dom/shadow/ShadowRoot.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/InputTypeNames.h"
 #include "core/html/shadow/TextControlInnerElements.h"
 #include "core/rendering/RenderSearchField.h"
 #include <wtf/PassOwnPtr.h>
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
@@ skipping 133 matching lines @@
         toRenderSearchField(element()->renderer())->updateCancelButtonVisibility();
 
     // If the incremental attribute is set, then dispatch the search event
     if (searchEventsShouldBeDispatched())
         startSearchEventTimer();
 
     TextFieldInputType::didSetValueByUserEdit(state);
 }
 
 } // namespace WebCore