Web Animations: Use of hyphens is no longer supported

third_party/WebKit/Source/core/frame/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 1051 matching lines @@
         V8Animation_Oncancel_AttributeGetter = 1233,
         V8Animation_Oncancel_AttributeSetter = 1234,
         V8HTMLCommentInExternalScript = 1235,
         V8HTMLComment = 1236,
         V8SloppyModeBlockScopedFunctionRedefinition = 1237,
         V8ForInInitializer = 1238,
         V8Animation_Id_AttributeGetter = 1239,
         V8Animation_Id_AttributeSetter = 1240,
         MediaStreamOnEnded = 1241,
         DocumentCreateEventInputEvent = 1242,
-        WebAnimationHyphenatedProperty = 1243,
         FormControlsCollectionReturnsRadioNodeListForFieldSet = 1244,
         ApplicationCacheManifestSelectInsecureOrigin = 1245,
         ApplicationCacheManifestSelectSecureOrigin = 1246,
         ApplicationCacheAPIInsecureOrigin = 1247,
         ApplicationCacheAPISecureOrigin = 1248,
         // The above items are available in M50 branch
 
         CSSAtRuleApply = 1249,
         CSSSelectorPseudoAny = 1250,
         PannerNodeSetVelocity = 1251,
@@ skipping 93 matching lines @@
     friend class UseCounterTest;
     static int m_muteCount;
 
     CountBits m_countBits;
     BitVector m_CSSFeatureBits;
 };
 
 } // namespace blink
 
 #endif // UseCounter_h