Fix sky include guards to match Chromium style

sky/engine/core/page/ChromeClient.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple, Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
  * 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 ChromeClient_h
-#define ChromeClient_h
+#ifndef SKY_ENGINE_CORE_PAGE_CHROMECLIENT_H_
+#define SKY_ENGINE_CORE_PAGE_CHROMECLIENT_H_
 
 #include "sky/engine/core/dom/Document.h"
 #include "sky/engine/core/frame/ConsoleTypes.h"
 #include "sky/engine/core/inspector/ConsoleAPITypes.h"
 #include "sky/engine/core/loader/NavigationPolicy.h"
 #include "sky/engine/core/page/FocusType.h"
 #include "sky/engine/core/rendering/style/RenderStyleConstants.h"
 #include "sky/engine/platform/Cursor.h"
 #include "sky/engine/platform/HostWindow.h"
 #include "sky/engine/platform/scroll/ScrollTypes.h"
@@ skipping 95 matching lines @@
     // Input mehtod editor related functions.
     virtual void willSetInputMethodState() { }
     virtual void didUpdateTextOfFocusedElementByNonUserInput() { }
     virtual void showImeIfNeeded() { }
 
 protected:
     virtual ~ChromeClient() { }
 };
 
 }
-#endif // ChromeClient_h
+#endif  // SKY_ENGINE_CORE_PAGE_CHROMECLIENT_H_