Worker: Enable UseCounter for SharedWorkerGlobalScope

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 51 matching lines @@
 
  public:
   enum Context {
     DefaultContext,
     // Counters for SVGImages (lifetime independent from other pages).
     SVGImageContext
   };
 
   UseCounter(Context = DefaultContext);
 
-  enum Feature {
+  enum Feature : uint32_t {
     // Do not change assigned numbers of existing items: add new features
     // to the end of the list.
     OBSOLETE_PageDestruction = 0,
     WorkerStart = 4,
     SharedWorkerStart = 5,
     UnprefixedIndexedDB = 9,
     OpenWebDatabase = 10,
     UnprefixedRequestAnimationFrame = 13,
     PrefixedRequestAnimationFrame = 14,
     ContentSecurityPolicy = 15,
@@ skipping 1449 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