[ServiceWorker] Add setURL() and url() to WebServiceWorkerResponse.

Source/platform/exported/WebServiceWorkerResponse.cpp

Index: Source/platform/exported/WebServiceWorkerResponse.cpp
diff --git a/Source/platform/exported/WebServiceWorkerResponse.cpp b/Source/platform/exported/WebServiceWorkerResponse.cpp
index edb2223a4bc5902258a839de127ceb386b545663..1552e7cbeb6fe590c96b7c27a1582cb352fd2184 100644
--- a/Source/platform/exported/WebServiceWorkerResponse.cpp
+++ b/Source/platform/exported/WebServiceWorkerResponse.cpp
@@ -11,6 +11,7 @@ namespace blink {
 
 class WebServiceWorkerResponsePrivate : public RefCounted<WebServiceWorkerResponsePrivate> {
 public:
+    WebURL url;
     unsigned short status;
     WebString statusText;
     HashMap<String, String> headers;
@@ -32,6 +33,16 @@ void WebServiceWorkerResponse::assign(const WebServiceWorkerResponse& other)
     m_private = other.m_private;
 }
 
+void WebServiceWorkerResponse::setURL(const WebURL& url)
+{
+    m_private->url = url;
+}
+
+WebURL WebServiceWorkerResponse::url() const
+{
+    return m_private->url;
+}
+
 void WebServiceWorkerResponse::setStatus(unsigned short status)
 {
     m_private->status = status;