Fix sky include guards to match Chromium style

sky/engine/core/loader/EmptyClients.h

 /*
  * Copyright (C) 2006 Eric Seidel (eric@webkit.org)
  * Copyright (C) 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.
  *
  * 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
  * 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 EmptyClients_h
-#define EmptyClients_h
+#ifndef SKY_ENGINE_CORE_LOADER_EMPTYCLIENTS_H_
+#define SKY_ENGINE_CORE_LOADER_EMPTYCLIENTS_H_
 
 #include "sky/engine/core/editing/UndoStep.h"
 #include "sky/engine/core/loader/FrameLoaderClient.h"
 #include "sky/engine/core/page/ChromeClient.h"
 #include "sky/engine/core/page/EditorClient.h"
 #include "sky/engine/core/page/FocusType.h"
 #include "sky/engine/core/page/Page.h"
 #include "sky/engine/core/page/SpellCheckerClient.h"
 #include "sky/engine/platform/geometry/FloatRect.h"
 #include "sky/engine/platform/network/ResourceError.h"
@@ skipping 143 matching lines @@
     virtual bool canCopyCut(LocalFrame*, bool defaultValue) const override { return defaultValue; }
     virtual bool canPaste(LocalFrame*, bool defaultValue) const override { return defaultValue; }
 
     virtual bool handleKeyboardEvent() override { return false; }
 };
 
 void fillWithEmptyClients(Page::PageClients&);
 
 }
 
-#endif // EmptyClients_h
+#endif  // SKY_ENGINE_CORE_LOADER_EMPTYCLIENTS_H_