Include Document.h in fewer headers

Source/core/css/resolver/ElementResolveContext.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef ElementResolveContext_h
 #define ElementResolveContext_h
 
-#include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/rendering/style/RenderStyleConstants.h"
 
 namespace WebCore {
 
 class ContainerNode;
 class Element;
 class RenderStyle;
 
 // ElementResolveContext is immutable and serves as an input to the style resolve process.
@@ skipping 21 matching lines @@
     RawPtrWillBeMember<Element> m_element;
     RawPtrWillBeMember<ContainerNode> m_parentNode;
     RenderStyle* m_rootElementStyle;
     EInsideLink m_elementLinkState;
     bool m_distributedToInsertionPoint;
 };
 
 } // namespace WebCore
 
 #endif // ElementResolveContext_h