Fix sky include guards to match Chromium style

sky/engine/core/rendering/RenderObjectInlines.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef RenderObjectInlines_h
-#define RenderObjectInlines_h
+#ifndef SKY_ENGINE_CORE_RENDERING_RENDEROBJECTINLINES_H_
+#define SKY_ENGINE_CORE_RENDERING_RENDEROBJECTINLINES_H_
 
 #include "sky/engine/core/dom/StyleEngine.h"
 #include "sky/engine/core/rendering/RenderObject.h"
 
 namespace blink {
 
 // The following methods are inlined for performance but not put in
 // RenderObject.h because that would unnecessarily tie RenderObject.h
 // to StyleEngine.h for all users of RenderObject.h that don't use
 // these methods.
 
 inline RenderStyle* RenderObject::firstLineStyle() const
 {
     return style();
 }
 
 inline RenderStyle* RenderObject::style(bool firstLine) const
 {
     return style();
 }
 
 }
 
-#endif
+#endif  // SKY_ENGINE_CORE_RENDERING_RENDEROBJECTINLINES_H_