Fix sky include guards to match Chromium style

sky/engine/core/events/ResourceProgressEvent.h

 /*
  * Copyright (C) 2013 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 ResourceProgressEvent_h
-#define ResourceProgressEvent_h
+#ifndef SKY_ENGINE_CORE_EVENTS_RESOURCEPROGRESSEVENT_H_
+#define SKY_ENGINE_CORE_EVENTS_RESOURCEPROGRESSEVENT_H_
 
 #include "sky/engine/core/events/ProgressEvent.h"
 
 namespace blink {
 
 // ResourceProgressEvent is a non-standard class that is simply a ProgressEvent
 // with an additional read-only "url" property containing a string URL. This is
 // used by the Chromium NaCl integration to indicate to which resource the
 // event applies. This is useful because the NaCl integration will download
 // (and translate in the case of PNaCl) multiple binary files. It is not
@@ skipping 18 matching lines @@
 protected:
     ResourceProgressEvent();
     ResourceProgressEvent(const AtomicString& type, bool lengthComputable, unsigned long long loaded, unsigned long long total, const String& url);
 
 private:
     String m_url;
 };
 
 } // namespace blink
 
-#endif // ResourceProgressEvent_h
+#endif  // SKY_ENGINE_CORE_EVENTS_RESOURCEPROGRESSEVENT_H_