deleted three UseCounter items to fix issue 645909

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 1008 matching lines @@
         V8Window_WebkitSpeechRecognitionError_ConstructorGetter = 1270,
         V8Window_WebkitSpeechRecognitionEvent_ConstructorGetter = 1271,
         V8Window_SpeechSynthesis_AttributeGetter = 1272,
         V8IDBFactory_WebkitGetDatabaseNames_Method = 1273,
         ImageDocument = 1274,
         ScriptPassesCSPDynamic = 1275,
         CSPWithStrictDynamic = 1277,
         ScrollAnchored = 1278,
         AddEventListenerFourArguments = 1279,
         RemoveEventListenerFourArguments = 1280,
-        InvalidReportUriDirectiveInMetaCSP = 1281,
-        InvalidSandboxDirectiveInMetaCSP = 1282,
-        InvalidFrameAncestorsDirectiveInMetaCSP = 1283,
         SVGCalcModeDiscrete = 1287,
         SVGCalcModeLinear = 1288,
         SVGCalcModePaced = 1289,
         SVGCalcModeSpline = 1290,
         FormSubmissionStarted = 1291,
         FormValidationStarted = 1292,
         FormValidationAbortedSubmission = 1293,
         FormValidationShowedMessage = 1294,
         WebAnimationsEasingAsFunctionLinear = 1295,
         WebAnimationsEasingAsFunctionOther = 1296,
@@ skipping 358 matching lines @@
     private:
         // 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