Fix sky include guards to match Chromium style

sky/engine/platform/text/DecodeEscapeSequences.h

 /*
  * Copyright (C) 2011 Daniel Bates (dbates@intudata.com). All Rights Reserved.
  * Copyright (c) 2012 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
  *    documentation and/or other materials provided with the distribution.
  * 3. Neither the name of Google Inc. nor the names of its
  *    contributors may be used to endorse or promote products derived from
  *    this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
  * 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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  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef DecodeEscapeSequences_h
-#define DecodeEscapeSequences_h
+#ifndef SKY_ENGINE_PLATFORM_TEXT_DECODEESCAPESEQUENCES_H_
+#define SKY_ENGINE_PLATFORM_TEXT_DECODEESCAPESEQUENCES_H_
 
 #include "sky/engine/wtf/ASCIICType.h"
 #include "sky/engine/wtf/Assertions.h"
 #include "sky/engine/wtf/text/StringBuilder.h"
 #include "sky/engine/wtf/text/TextEncoding.h"
 
 namespace blink {
 
 // See <http://en.wikipedia.org/wiki/Percent-encoding#Non-standard_implementations>.
 struct Unicode16BitEscapeSequence {
@@ skipping 106 matching lines @@
         result.append(string, decodedPosition, encodedRunPosition - decodedPosition);
         result.append(decoded);
         decodedPosition = encodedRunEnd;
     }
     result.append(string, decodedPosition, length - decodedPosition);
     return result.toString();
 }
 
 } // namespace blink
 
-#endif // DecodeEscapeSequences_h
+#endif  // SKY_ENGINE_PLATFORM_TEXT_DECODEESCAPESEQUENCES_H_