Expose UseCounter::Feature enum out of blink as WebFeature

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

Index: third_party/WebKit/Source/core/workers/ThreadedObjectProxyBase.h
diff --git a/third_party/WebKit/Source/core/workers/ThreadedObjectProxyBase.h b/third_party/WebKit/Source/core/workers/ThreadedObjectProxyBase.h
index 29bc2e5e471504fb427f8e84e43e91c8e72a3105..613255734cfc5f8c04fbf82a861e2d4aa7c20889 100644
--- a/third_party/WebKit/Source/core/workers/ThreadedObjectProxyBase.h
+++ b/third_party/WebKit/Source/core/workers/ThreadedObjectProxyBase.h
@@ -29,8 +29,15 @@ class CORE_EXPORT ThreadedObjectProxyBase : public WorkerReportingProxy {
   void ReportPendingActivity(bool has_pending_activity);
 
   // WorkerReportingProxy overrides.
+  // TODO(lunalu): Deprecate UseCounter::Feature by WebFeature.
   void CountFeature(UseCounter::Feature) override;
+  void CountFeature(WebFeature feature) override {
+    return CountFeature(static_cast<UseCounter::Feature>(feature));
+  }
   void CountDeprecation(UseCounter::Feature) override;
+  void CountDeprecation(WebFeature feature) override {
+    return CountDeprecation(static_cast<UseCounter::Feature>(feature));
+  }
   void ReportConsoleMessage(MessageSource,
                             MessageLevel,
                             const String& message,