Fix sky include guards to match Chromium style

sky/engine/platform/text/BidiTestHarness.h

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 10 matching lines @@
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER 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
  * (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 BidiTestHarness_h
-#define BidiTestHarness_h
+#ifndef SKY_ENGINE_PLATFORM_TEXT_BIDITESTHARNESS_H_
+#define SKY_ENGINE_PLATFORM_TEXT_BIDITESTHARNESS_H_
 
 #include <stdio.h>
 #include <istream>
 #include <map>
 #include <string>
 #include <vector>
 
 // FIXME: We don't have any business owning this code. We should try to
 // upstream this to unicode.org if possible (for other implementations to use).
 // Unicode.org provides a reference implmentation, including parser:
@@ skipping 220 matching lines @@
             if (paragraphDirectionMask & DirectionLTR)
                 m_runner.runTest(testString, reorder, levels, DirectionLTR, originalLine, lineNumber);
             if (paragraphDirectionMask & DirectionRTL)
                 m_runner.runTest(testString, reorder, levels, DirectionRTL, originalLine, lineNumber);
         }
     }
 }
 
 } // namespace bidi_test
 
-#endif // BidiTestHarness_h
+#endif  // SKY_ENGINE_PLATFORM_TEXT_BIDITESTHARNESS_H_