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

Source/core/html/canvas/WebGLUniformLocation.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2009 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
@@ skipping 10 matching lines @@
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 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. 
  */
 
 #ifndef WebGLUniformLocation_h
 #define WebGLUniformLocation_h
 
 #include "bindings/v8/ScriptWrappable.h"
-#include "core/html/canvas/WebGLObject.h"
 #include "core/html/canvas/WebGLProgram.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 
 namespace WebCore {
 
 class WebGLUniformLocation : public RefCounted<WebGLUniformLocation>, public ScriptWrappable {
 public:
     virtual ~WebGLUniformLocation() { }
 
     static PassRefPtr<WebGLUniformLocation> create(WebGLProgram*, GC3Dint location);
 
     WebGLProgram* program() const;
 
     GC3Dint location() const;
 
 protected:
     WebGLUniformLocation(WebGLProgram*, GC3Dint location);
 
 private:
     RefPtr<WebGLProgram> m_program;
     GC3Dint m_location;
     unsigned m_linkCount;
 };
 
 } // namespace WebCore
 
 #endif // WebGLUniformLocation_h