Fix sky include guards to match Chromium style

sky/engine/core/dom/DOMURLUtilsReadOnly.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2012 Motorola Mobility Inc.
  *
  * 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
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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-#ifndef DOMURLUtilsReadOnly_h
-#define DOMURLUtilsReadOnly_h
+#ifndef SKY_ENGINE_CORE_DOM_DOMURLUTILSREADONLY_H_
+#define SKY_ENGINE_CORE_DOM_DOMURLUTILSREADONLY_H_
 
 #include "sky/engine/platform/weborigin/KURL.h"
 #include "sky/engine/wtf/Forward.h"
 
 namespace blink {
 
 class DOMURLUtilsReadOnly {
 public:
     virtual KURL url() const = 0;
     virtual String input() const = 0;
@@ skipping 27 matching lines @@
 
     static String search(const KURL&);
     String search() { return search(url()); }
 
     static String hash(const KURL&);
     String hash() { return hash(url()); }
 };
 
 } // namespace blink
 
-#endif // DOMURLUtilsReadOnly_h
+#endif  // SKY_ENGINE_CORE_DOM_DOMURLUTILSREADONLY_H_