Fix sky include guards to match Chromium style

sky/engine/platform/graphics/skia/SkiaUtils.h

 /*
  * Copyright (c) 2006,2007,2008, 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 12 matching lines @@
  * 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.
  */
 
 // All of the functions in this file should move to new homes and this file should be deleted.
 
-#ifndef SkiaUtils_h
-#define SkiaUtils_h
+#ifndef SKY_ENGINE_PLATFORM_GRAPHICS_SKIA_SKIAUTILS_H_
+#define SKY_ENGINE_PLATFORM_GRAPHICS_SKIA_SKIAUTILS_H_
 
 #include "sky/engine/platform/PlatformExport.h"
 #include "sky/engine/platform/geometry/FloatRect.h"
 #include "sky/engine/platform/graphics/Color.h"
 #include "sky/engine/platform/graphics/GraphicsTypes.h"
 #include "sky/engine/platform/transforms/AffineTransform.h"
 #include "sky/engine/wtf/MathExtras.h"
 #include "third_party/skia/include/core/SkMatrix.h"
 #include "third_party/skia/include/core/SkPaint.h"
 #include "third_party/skia/include/core/SkPath.h"
@@ skipping 56 matching lines @@
     float srcWidth,
     float srcHeight,
     float destWidth,
     float destHeight,
     bool isDataComplete = true);
 
 bool shouldDrawAntiAliased(const GraphicsContext*, const SkRect& destRect);
 
 } // namespace blink
 
-#endif  // SkiaUtils_h
+#endif  // SKY_ENGINE_PLATFORM_GRAPHICS_SKIA_SKIAUTILS_H_