Revert r414590

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 1100 matching lines @@
     MediaStreamConstraintsOldAndNew = 1389,
     V8ArrayProtectorDirtied = 1390,
     V8ArraySpeciesModified = 1391,
     V8ArrayPrototypeConstructorModified = 1392,
     V8ArrayInstanceProtoModified = 1393,
     V8ArrayInstanceConstructorModified = 1394,
     V8LegacyFunctionDeclaration = 1395,
     V8RegExpPrototypeSourceGetter = 1396,
     V8RegExpPrototypeOldFlagGetter = 1397,
     V8DecimalWithLeadingZeroInStrictMode = 1398,
+    FormSubmissionNotInDocumentTree = 1399,
     GetUserMediaPrefixed = 1400,
     GetUserMediaLegacy = 1401,
     GetUserMediaPromise = 1402,
     CSSFilterFunctionNoArguments = 1403,
     V8LegacyDateParser = 1404,
     OpenSearchInsecureOriginInsecureTarget = 1405,
     OpenSearchInsecureOriginSecureTarget = 1406,
     OpenSearchSecureOriginInsecureTarget = 1407,
     OpenSearchSecureOriginSecureTarget = 1408,
     RegisterProtocolHandlerSecureOrigin = 1409,
@@ skipping 291 matching lines @@
     // Tracks what features/properties need to be reported to the legacy
     // histograms.
     BitVector m_featureBits;
     BitVector m_CSSBits;
   } m_legacyCounter;
 };
 
 }  // namespace blink
 
 #endif  // UseCounter_h