Fix sky include guards to match Chromium style

sky/engine/public/platform/WebFloatAnimationCurve.h

 /*
  * 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.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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 WebFloatAnimationCurve_h
-#define WebFloatAnimationCurve_h
+#ifndef SKY_ENGINE_PUBLIC_PLATFORM_WEBFLOATANIMATIONCURVE_H_
+#define SKY_ENGINE_PUBLIC_PLATFORM_WEBFLOATANIMATIONCURVE_H_
 
 #include "sky/engine/public/platform/WebCommon.h"
 #include "sky/engine/public/platform/WebCompositorAnimationCurve.h"
 #include "sky/engine/public/platform/WebFloatKeyframe.h"
 
 namespace blink {
 
 // A keyframed float animation curve.
 class WebFloatAnimationCurve : public WebCompositorAnimationCurve {
 public:
     virtual ~WebFloatAnimationCurve() { }
 
     // Adds the keyframe with the default timing function (ease).
     virtual void add(const WebFloatKeyframe&) = 0;
     virtual void add(const WebFloatKeyframe&, TimingFunctionType) = 0;
     // Adds the keyframe with a custom, bezier timing function. Note, it is
     // assumed that x0 = y0 = 0, and x3 = y3 = 1.
     virtual void add(const WebFloatKeyframe&, double x1, double y1, double x2, double y2) = 0;
 
     virtual float getValue(double time) const = 0;
 };
 
 } // namespace blink
 
-#endif // WebFloatAnimationCurve_h
+#endif  // SKY_ENGINE_PUBLIC_PLATFORM_WEBFLOATANIMATIONCURVE_H_