Fix sky include guards to match Chromium style

sky/engine/core/rendering/HitTestRequest.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
  * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
 */
 
-#ifndef HitTestRequest_h
-#define HitTestRequest_h
+#ifndef SKY_ENGINE_CORE_RENDERING_HITTESTREQUEST_H_
+#define SKY_ENGINE_CORE_RENDERING_HITTESTREQUEST_H_
 
 namespace blink {
 
 class HitTestRequest {
 public:
     enum RequestType {
         ReadOnly = 1 << 1,
         Active = 1 << 2,
         Move = 1 << 3,
         Release = 1 << 4,
@@ skipping 31 matching lines @@
     bool touchRelease() const { return release() && touchEvent(); }
 
     HitTestRequestType type() const { return m_requestType; }
 
 private:
     HitTestRequestType m_requestType;
 };
 
 } // namespace blink
 
-#endif // HitTestRequest_h
+#endif  // SKY_ENGINE_CORE_RENDERING_HITTESTREQUEST_H_