Roll IDL to multivm@1316

modules/webmidi/MIDIAccessPromise.idl

Index: modules/webmidi/MIDIAccessPromise.idl
diff --git a/core/css/CSSFontFaceLoadEvent.idl b/modules/webmidi/MIDIAccessPromise.idl
similarity index 83%
copy from core/css/CSSFontFaceLoadEvent.idl
copy to modules/webmidi/MIDIAccessPromise.idl
index d89e765c792e259ee15e6dae180a844fe81bf16a..2a4b37a819584bfcb7b6264659dd21adb3afb19e 100644
--- a/core/css/CSSFontFaceLoadEvent.idl
+++ b/modules/webmidi/MIDIAccessPromise.idl
@@ -28,11 +28,12 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+// FIXME: Once Promise is implemented, remove this interface and use it.
+// See also, http://crbug.com/243345
 [
     NoInterfaceObject,
-    EnabledAtRuntime=fontLoadEvents,
-    ConstructorTemplate=Event
-] interface CSSFontFaceLoadEvent : Event {
-    [InitializedByEventConstructor] readonly attribute CSSFontFaceRule fontface;
-    [InitializedByEventConstructor] readonly attribute DOMError error;
+    ActiveDOMObject
+] interface MIDIAccessPromise {
+    // Supports only then() method tentatively. But it never returns Promise.
+    void then(MIDISuccessCallback successCallback, MIDIErrorCallback errorCallback);
 };