[ServiceWorker] Propagates ServiceWorker fetched response's URL and wasFetchedViaServiceWorker flag.

net/url_request/url_request.h

Index: net/url_request/url_request.h
diff --git a/net/url_request/url_request.h b/net/url_request/url_request.h
index 0357c6ae803236d3f8f44be6cf03843cadd882cd..6a83c384ea50562870ed429eeeb8cfac796fff0b 100644
--- a/net/url_request/url_request.h
+++ b/net/url_request/url_request.h
@@ -499,6 +499,17 @@ class NET_EXPORT URLRequest : NON_EXPORTED_BASE(public base::NonThreadSafe),
     return response_info_.ssl_info;
   }
 
+  // Returns true if the URLRequest was delivered through ServiceWorker.
+  bool was_fetched_via_service_worker() const {
+    return response_info_.was_fetched_via_service_worker;
+  }
+
+  // The original URL of the repsponse which was fetched via the ServiceWorker.
+  // This may be empty if the repsponse was created inside the ServiceWorker.
+  const GURL& original_url_via_service_worker() const {
+    return response_info_.original_url_via_service_worker;
+  }
+
   // Gets timing information related to the request.  Events that have not yet
   // occurred are left uninitialized.  After a second request starts, due to
   // a redirect or authentication, values will be reset.