Bug 1006310 - Patch1: Revise setName and setDiscoverable method in BluetoothAdapter.webidl. f=btian, r=bz

dom/webidl/BluetoothAdapter2.webidl

@@ -86,10 +86,12 @@ interface BluetoothAdapter : EventTarget {
   // Fired when attributes of BluetoothAdapter changed
            attribute EventHandler   onattributechanged;
 
-  [NewObject, Throws]
-  DOMRequest setName(DOMString name);
-  [NewObject, Throws]
-  DOMRequest setDiscoverable(boolean discoverable);
+  // Promise<void>
+  [Throws]
+  Promise setName(DOMString aName);
+  // Promise<void>
+  [Throws]
+  Promise setDiscoverable(boolean aDiscoverable);
   [NewObject, Throws]
   DOMRequest startDiscovery();
   [NewObject, Throws]