Roll IDL to multivm@1329

modules/mediastream/URLMediaStream.idl

Index: modules/mediastream/URLMediaStream.idl
diff --git a/core/dom/Promise.idl b/modules/mediastream/URLMediaStream.idl
similarity index 91%
copy from core/dom/Promise.idl
copy to modules/mediastream/URLMediaStream.idl
index 893b8eefcf88606ebbdc2d59962a106e074795a6..3b8edb5a2135f748fe0019c6669768aa8961a86b 100644
--- a/core/dom/Promise.idl
+++ b/modules/mediastream/URLMediaStream.idl
@@ -27,9 +27,6 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-
-[
-   CustomConstructor(any init),
-   EnabledAtRuntime=promise
-] interface Promise {
+partial interface URL {
+    [CallWith=ScriptExecutionContext,TreatReturnedNullStringAs=Null] static DOMString createObjectURL(MediaStream? stream);
 };