Fix sky include guards to match Chromium style

sky/engine/platform/geometry/FloatQuad.h

 /*
  * Copyright (C) 2008 Apple 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 Apple Computer, Inc. ("Apple") 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 AND ITS CONTRIBUTORS "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 OR ITS 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 FloatQuad_h
-#define FloatQuad_h
+#ifndef SKY_ENGINE_PLATFORM_GEOMETRY_FLOATQUAD_H_
+#define SKY_ENGINE_PLATFORM_GEOMETRY_FLOATQUAD_H_
 
 #include "sky/engine/platform/geometry/FloatPoint.h"
 #include "sky/engine/platform/geometry/FloatRect.h"
 #include "sky/engine/platform/geometry/IntRect.h"
 
 namespace blink {
 
 // A FloatQuad is a collection of 4 points, often representing the result of
 // mapping a rectangle through transforms. When initialized from a rect, the
 // points are in clockwise order from top left.
@@ skipping 128 matching lines @@
 {
     return a.p1() != b.p1() ||
            a.p2() != b.p2() ||
            a.p3() != b.p3() ||
            a.p4() != b.p4();
 }
 
 }   // namespace blink
 
 
-#endif // FloatQuad_h
+#endif  // SKY_ENGINE_PLATFORM_GEOMETRY_FLOATQUAD_H_