Remove unused includes from core/accessibility, core/css and core/dom

Source/core/dom/ContainerNodeAlgorithms.h

 /*
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  *           (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * 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 ContainerNodeAlgorithms_h
 #define ContainerNodeAlgorithms_h
 
 #include "core/dom/Document.h"
 #include "core/dom/NodeTraversal.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/inspector/InspectorInstrumentation.h"
-#include "core/page/Frame.h"
-#include <wtf/Assertions.h>
+#include "wtf/Assertions.h"
 
 namespace WebCore {
 
 class ChildNodeInsertionNotifier {
 public:
     explicit ChildNodeInsertionNotifier(ContainerNode* insertionPoint)
         : m_insertionPoint(insertionPoint)
     {
     }
 
@@ skipping 289 matching lines @@
         for (Node* child = m_root->firstChild(); child; child = child->nextSibling())
             collectFrameOwners(child);
     }
 
     disconnectCollectedFrameOwners();
 }
 
 } // namespace WebCore
 
 #endif // ContainerNodeAlgorithms_h