Make DOMString an alias for Option<~str>

Fixes #898.

1 files changed, 5 insertions, 5 deletions

diff --git a/src/components/script/dom/htmltrackelement.rs b/src/components/script/dom/htmltrackelement.rs
index 40ba4e0f4cb..4a7ff5b71cb 100644
--- a/src/components/script/dom/htmltrackelement.rs
+++ b/src/components/script/dom/htmltrackelement.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use dom::bindings::utils::{DOMString, null_string, ErrorResult};
+use dom::bindings::utils::{DOMString, ErrorResult};
 use dom::htmlelement::HTMLElement;
 
 pub struct HTMLTrackElement {
@@ -11,28 +11,28 @@ pub struct HTMLTrackElement {
 
 impl HTMLTrackElement {
     pub fn Kind(&self) -> DOMString {
-        null_string
+        None
     }
 
     pub fn SetKind(&mut self, _kind: &DOMString, _rv: &mut ErrorResult) {
     }
 
     pub fn Src(&self) -> DOMString {
-        null_string
+        None
     }
 
     pub fn SetSrc(&mut self, _src: &DOMString, _rv: &mut ErrorResult) {
     }
 
     pub fn Srclang(&self) -> DOMString {
-        null_string
+        None
     }
 
     pub fn SetSrclang(&mut self, _srclang: &DOMString, _rv: &mut ErrorResult) {
     }
 
     pub fn Label(&self) -> DOMString {
-        null_string
+        None
     }
 
     pub fn SetLabel(&mut self, _label: &DOMString, _rv: &mut ErrorResult) {