Fix sky include guards to match Chromium style

sky/engine/wtf/RawPtr.h

 /*
  * Copyright (C) 2014 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 10 matching lines @@
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER 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 WTF_RawPtr_h
-#define WTF_RawPtr_h
+#ifndef SKY_ENGINE_WTF_RAWPTR_H_
+#define SKY_ENGINE_WTF_RAWPTR_H_
 
 #include <stdint.h>
 #include <algorithm>
 
 #include "sky/engine/wtf/HashTableDeletedValueType.h"
 
 // RawPtr is a simple wrapper for a raw pointer that provides the
 // interface (get, clear) of other pointer types such as RefPtr,
 // Persistent and Member. This is used for the Blink garbage
 // collection work in order to be able to write shared code that will
@@ skipping 97 matching lines @@
 
 template<typename T> inline T* getPtr(const RawPtr<T>& p)
 {
     return p.get();
 }
 
 } // namespace WTF
 
 using WTF::RawPtr;
 
-#endif
+#endif  // SKY_ENGINE_WTF_RAWPTR_H_