Remove unused includes from core/{editing,fileapi,history,html}

Source/core/html/canvas/WebGLVertexArrayObjectOES.h

 /*
  * Copyright (C) 2011 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 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
  */
 
 #ifndef WebGLVertexArrayObjectOES_h
 #define WebGLVertexArrayObjectOES_h
 
 #include "bindings/v8/ScriptWrappable.h"
 #include "core/html/canvas/WebGLBuffer.h"
 #include "core/html/canvas/WebGLContextObject.h"
-#include <wtf/PassRefPtr.h>
-#include <wtf/RefCounted.h>
+#include "wtf/PassRefPtr.h"
 
 namespace WebCore {
 
 class WebGLVertexArrayObjectOES : public WebGLContextObject, public ScriptWrappable {
 public:
     enum VaoType {
         VaoTypeDefault,
         VaoTypeUser,
     };
 
@@ skipping 50 matching lines @@
 
     VaoType m_type;
     bool m_hasEverBeenBound;
     RefPtr<WebGLBuffer> m_boundElementArrayBuffer;
     Vector<VertexAttribState> m_vertexAttribState;
 };
 
 } // namespace WebCore
 
 #endif // WebGLVertexArrayObjectOES_h