Expose performance.memory in workers

Source/web/WebEmbeddedWorkerImpl.cpp

Index: Source/web/WebEmbeddedWorkerImpl.cpp
diff --git a/Source/web/WebEmbeddedWorkerImpl.cpp b/Source/web/WebEmbeddedWorkerImpl.cpp
index dc692bc3cf5f36dbcdbd0432c74ab99b79fbce80..3fa22c72268a3efecf23aeddbc193549b5cc3ea2 100644
--- a/Source/web/WebEmbeddedWorkerImpl.cpp
+++ b/Source/web/WebEmbeddedWorkerImpl.cpp
@@ -245,7 +245,8 @@ void WebEmbeddedWorkerImpl::onScriptLoaderFinished()
             // FIXME: fill appropriate CSP info and policy type.
             String(),
             ContentSecurityPolicy::Enforce,
-            workerClients.release());
+            workerClients.release(),
+            WorkerSettings::create());
 
     m_mainScriptLoader.clear();