Fix sky include guards to match Chromium style

sky/engine/public/web/Sky.h

 /*
  * Copyright (C) 2009 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 WebKit_h
-#define WebKit_h
+#ifndef SKY_ENGINE_PUBLIC_WEB_SKY_H_
+#define SKY_ENGINE_PUBLIC_WEB_SKY_H_
 
 #include "../platform/Platform.h"
 
 namespace v8 {
 class Isolate;
 }
 
 namespace blink {
 
 // Must be called on the thread that will be the main WebKit thread before
@@ skipping 33 matching lines @@
 
 // Alters the rendering of fonts for layout tests.
 BLINK_EXPORT void setFontAntialiasingEnabledForTest(bool);
 BLINK_EXPORT bool fontAntialiasingEnabledForTest();
 
 // Enables the named log channel. See WebCore/platform/Logging.h for details.
 BLINK_EXPORT void enableLogChannel(const char*);
 
 } // namespace blink
 
-#endif
+#endif  // SKY_ENGINE_PUBLIC_WEB_SKY_H_