Make Response::url private.

components/net/fetch/methods.rs

@@ -687,7 +687,7 @@ fn http_redirect_fetch<UI: 'static + UIProvider>(request: Rc<Request>,
         Some(&Location(ref location)) => location.clone(),
         _ => return Response::network_error(NetworkError::Internal("Location header parsing failure".into()))
     };
-    let response_url = response.actual_response().url.as_ref().unwrap();
+    let response_url = response.actual_response().url().unwrap();
     let location_url = response_url.join(&*location);
     let location_url = match location_url {
         Ok(url) => url,

components/net_traits/response.rs

@@ -79,7 +79,7 @@ pub enum ResponseMsg {
 pub struct Response {
     pub response_type: ResponseType,
     pub termination_reason: Option<TerminationReason>,
-    pub url: Option<Url>,
+    url: Option<Url>,
     pub url_list: RefCell<Vec<Url>>,
     /// `None` can be considered a StatusCode of `0`.
     #[ignore_heap_size_of = "Defined in hyper"]
@@ -136,6 +136,10 @@ impl Response {
         }
     }
 
+    pub fn url(&self) -> Option<&Url> {
+        self.url.as_ref()
+    }
+
     pub fn is_network_error(&self) -> bool {
         match self.response_type {
             ResponseType::Error(..) => true,

tests/unit/net/fetch.rs

@@ -383,8 +383,8 @@ fn test_fetch_response_is_opaque_filtered() {
     assert!(!fetch_response.is_network_error());
     assert_eq!(fetch_response.response_type, ResponseType::Opaque);
 
+    assert!(fetch_response.url().is_none());
     assert!(fetch_response.url_list.into_inner().len() == 0);
-    assert!(fetch_response.url.is_none());
     // this also asserts that status message is "the empty byte sequence"
     assert!(fetch_response.status.is_none());
     assert_eq!(fetch_response.headers, Headers::new());