Fix sky include guards to match Chromium style

sky/engine/platform/text/ParserUtilities.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2002, 2003 The Karbon Developers
  * Copyright (C) 2006, 2007 Rob Buis <buis@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 ParserUtilities_h
-#define ParserUtilities_h
+#ifndef SKY_ENGINE_PLATFORM_TEXT_PARSERUTILITIES_H_
+#define SKY_ENGINE_PLATFORM_TEXT_PARSERUTILITIES_H_
 
 #include "sky/engine/wtf/text/WTFString.h"
 
 namespace blink {
 
 template<typename CharType>
 inline bool skipString(const CharType*& ptr, const CharType* end, const CharType* name, int length)
 {
     if (end - ptr < length)
         return false;
@@ skipping 24 matching lines @@
     for (int i = 0; i < length; ++i) {
         if (ptr[i] != str[i])
             return false;
     }
     ptr += length;
     return true;
 }
 
 } // namespace blink
 
-#endif // ParserUtilities_h
+#endif  // SKY_ENGINE_PLATFORM_TEXT_PARSERUTILITIES_H_