Fix sky include guards to match Chromium style

sky/engine/wtf/ASCIICType.h

 /*
  * Copyright (C) 2007, 2008, 2009, 2011 Apple Inc. All rights reserved.
  *
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  * modification, are permitted provided that the following conditions
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  *     notice, this list of conditions and the following disclaimer.
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  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
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  *     its contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
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-#ifndef WTF_ASCIICType_h
-#define WTF_ASCIICType_h
+#ifndef SKY_ENGINE_WTF_ASCIICTYPE_H_
+#define SKY_ENGINE_WTF_ASCIICTYPE_H_
 
 #include "sky/engine/wtf/Assertions.h"
 
 // The behavior of many of the functions in the <ctype.h> header is dependent
 // on the current locale. But in the WebKit project, all uses of those functions
 // are in code processing something that's not locale-specific. These equivalents
 // for some of the <ctype.h> functions are named more explicitly, not dependent
 // on the C library locale, and we should also optimize them as needed.
 
 // All functions return false or leave the character unchanged if passed a character
@@ skipping 135 matching lines @@
 using WTF::isASCIISpace;
 using WTF::isASCIIUpper;
 using WTF::toASCIIHexValue;
 using WTF::toASCIILower;
 using WTF::toASCIILowerUnchecked;
 using WTF::toASCIIUpper;
 using WTF::lowerNibbleToASCIIHexDigit;
 using WTF::upperNibbleToASCIIHexDigit;
 using WTF::isASCIIAlphaCaselessEqual;
 
-#endif
+#endif  // SKY_ENGINE_WTF_ASCIICTYPE_H_