Bug 1443861 - Replace promiseWaitForCondition with TestUtils.waitForCondition r=johannh

Reviewers: johannh

Reviewed By: johannh

Bug #: 1443861

Differential Revision: https://phabricator.services.mozilla.com/D4293

--HG--
extra : source : 8d42de3d92450c461967fe102959dba7b71ff663
extra : histedit_source : fca7fe1b5aaf5bebdd679118df24e8c6929edf27

browser/base/content/test/webrtc/browser_devices_get_user_media_anim.js

@@ -58,8 +58,8 @@ var gTests = [
       await closeStream();
 
       // TODO(Bug 1304997): Fix the race in closeStream() and remove this
-      // promiseWaitForCondition().
+      // TestUtils.waitForCondition().
-      await promiseWaitForCondition(() => !tab.getAttribute("sharing"));
+      await TestUtils.waitForCondition(() => !tab.getAttribute("sharing"));
       is(tab.getAttribute("sharing"), "",
          "the tab no longer has the 'sharing' attribute after closing the stream");
     }