Bug 1682939 - Remove nsISimpleEnumerator use in imIAccountsService. r=clokep

chat/components/public/imIAccountsService.idl

@@ -3,7 +3,6 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "nsISupports.idl"
-#include "nsISimpleEnumerator.idl"
 #include "imIAccount.idl"
 
 [scriptable, uuid(b3b6459a-5c26-47b8-8e9c-ba838b6f632a)]
@@ -37,7 +36,7 @@ interface imIAccountsService: nsISupports {
   /* will throw NS_ERROR_FAILURE if not found */
   imIAccount getAccountByNumericId(in unsigned long aAccountId);
 
-  nsISimpleEnumerator getAccounts();
+  Array<imIAccount> getAccounts();
 
   /* will fire the event account-added */
   imIAccount createAccount(in AUTF8String aName, in AUTF8String aPrpl);

chat/components/src/imAccounts.jsm

@@ -6,7 +6,6 @@ var EXPORTED_SYMBOLS = ["AccountsService"];
 
 var {
   ClassInfo,
-  nsSimpleEnumerator,
   XPCOMUtils,
   setTimeout,
   clearTimeout,
@@ -1226,7 +1225,7 @@ AccountsService.prototype = {
     return this._accountsById[aAccountId];
   },
   getAccounts() {
-    return new nsSimpleEnumerator(this._accounts);
+    return this._accounts;
   },
 
   createAccount(aName, aPrpl) {