Unprefix User Timing.

Source/core/page/UseCounter.h

 /*
  * Copyright (C) 2012 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:
  * 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
@@ skipping 101 matching lines @@
         Reflection,
         CursorVisibility,
         StorageInfo,
         XFrameOptions,
         XFrameOptionsSameOrigin,
         XFrameOptionsSameOriginWithBadAncestorChain,
         DeprecatedFlexboxWebContent,
         DeprecatedFlexboxChrome,
         DeprecatedFlexboxChromeExtension,
         SVGTRefElement,
+        UnprefixedPerformanceTimeline,
+        PrefixedPerformanceTimeline,
+        UnprefixedUserTiming,
+        PrefixedUserTiming,
         // Add new features above this line. Don't change assigned numbers of each items.
         NumberOfFeatures, // This enum value must be last.
     };
 
     // "observe" sets the bit for this feature to 1. Repeated calls are ignored.
     static void observe(Document*, Feature);
     static void observe(DOMWindow*, Feature);
     void didCommitLoad();
 
 private:
     void didObserve(Feature feature)
     {
         ASSERT(feature != PageDestruction); // PageDestruction is reserved as a scaling factor.
         ASSERT(feature < NumberOfFeatures);
         if (!m_countBits) {
             m_countBits = adoptPtr(new BitVector(NumberOfFeatures));
             m_countBits->clearAll();
         }
         m_countBits->quickSet(feature);
     }
 
     void updateMeasurements();
 
     OwnPtr<BitVector> m_countBits;
 };
 
 } // namespace WebCore
 
 #endif // UseCounter_h