Expose UseCounter::Feature enum out of blink as WebFeature

third_party/WebKit/Source/core/workers/WorkerReportingProxy.h

Index: third_party/WebKit/Source/core/workers/WorkerReportingProxy.h
diff --git a/third_party/WebKit/Source/core/workers/WorkerReportingProxy.h b/third_party/WebKit/Source/core/workers/WorkerReportingProxy.h
index 6f9aa21ebc96e72f36a65372617361a94f92dcd8..de62f8c8a9f717f880f1c10069c110168144de9f 100644
--- a/third_party/WebKit/Source/core/workers/WorkerReportingProxy.h
+++ b/third_party/WebKit/Source/core/workers/WorkerReportingProxy.h
@@ -48,8 +48,11 @@ class CORE_EXPORT WorkerReportingProxy {
  public:
   virtual ~WorkerReportingProxy() {}
 
+  // TODO(lunalu): Deprecate UseCounter::Feature by WebFeature.
   virtual void CountFeature(UseCounter::Feature) {}
+  virtual void CountFeature(WebFeature) {}
   virtual void CountDeprecation(UseCounter::Feature) {}
+  virtual void CountDeprecation(WebFeature) {}
   virtual void ReportException(const String& error_message,
                                std::unique_ptr<SourceLocation>,
                                int exception_id) {}