Bug 1357640 - Fix API usage of pushPrefEnv in test_mediarecorder_record_changing_video_resolution.html. r=achronop

MozReview-Commit-ID: BHU6za3spqJ

--HG--
extra : rebase_source : 3e19295195823056d5e93e187442b7507551ea87

dom/media/test/test_mediarecorder_record_changing_video_resolution.html

@@ -154,8 +154,10 @@ function startTest() {
 SimpleTest.waitForExplicitFinish();
 SpecialPowers.pushPrefEnv(
   {
-    "set": [["media.seekToNextFrame.enabled", true ]],
-    "set": [["media.video-queue.send-to-compositor-size", 1]]
+    "set": [
+      ["media.seekToNextFrame.enabled", true ],
+      ["media.video-queue.send-to-compositor-size", 1]
+    ]
   }, startTest);
 
 </script>