Fix sky include guards to match Chromium style

sky/engine/public/web/WebTouchAction.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 WebTouchAction_h
-#define WebTouchAction_h
+#ifndef SKY_ENGINE_PUBLIC_WEB_WEBTOUCHACTION_H_
+#define SKY_ENGINE_PUBLIC_WEB_WEBTOUCHACTION_H_
 
 namespace blink {
 
 // Flags for permitted touch actions, specified in http://www.w3.org/TR/pointerevents/#the-touch-action-css-property.
 enum WebTouchAction {
     WebTouchActionAuto = 0x0,
     WebTouchActionNone = 0x1,
     WebTouchActionPanX = 0x2,
     WebTouchActionPanY = 0x4,
     WebTouchActionPinchZoom = 0x8,
 };
 inline WebTouchAction operator| (WebTouchAction a, WebTouchAction b) { return WebTouchAction(int(a) | int(b)); }
 inline WebTouchAction& operator|= (WebTouchAction& a, WebTouchAction b) { return a = a | b; }
 inline WebTouchAction operator& (WebTouchAction a, WebTouchAction b) { return WebTouchAction(int(a) & int(b)); }
 inline WebTouchAction& operator&= (WebTouchAction& a, WebTouchAction b) { return a = a & b; }
 
 
 } // namespace blink
 
-#endif
+#endif  // SKY_ENGINE_PUBLIC_WEB_WEBTOUCHACTION_H_