MediaRecorder: disabling LayoutTests in preparation of Cr CLs and a minor update

LayoutTests/fast/mediarecorder/MediaRecorder-canRecordMimeType.html

Index: LayoutTests/fast/mediarecorder/MediaRecorder-canRecordMimeType.html
diff --git a/LayoutTests/fast/mediarecorder/MediaRecorder-canRecordMimeType.html b/LayoutTests/fast/mediarecorder/MediaRecorder-canRecordMimeType.html
index 249e47a5d8795f5f3fed4bb80cc322468772659d..aa43a3b86bb198a4218e951ce553358869a70fc8 100644
--- a/LayoutTests/fast/mediarecorder/MediaRecorder-canRecordMimeType.html
+++ b/LayoutTests/fast/mediarecorder/MediaRecorder-canRecordMimeType.html
@@ -2,8 +2,8 @@
 <script src=../../resources/testharness.js></script>
 <script src=../../resources/testharnessreport.js></script>
 <script>
-// Check one Video format that should be recordable and another that should be.
-// Supported formats return "maybe". Same for Audio.
+// Check one Video format that should be recordable and another that should not
+// be. Supported formats return "maybe". Same for Audio.
 // https://w3c.github.io/mediacapture-record/MediaRecorder.html#methods
 
 test(function() {
@@ -11,15 +11,15 @@ test(function() {
 }, 'check MediaRecorder.canRecordMimeType() with video/invalid');
 
 test(function() {
-  assert_equals(MediaRecorder.canRecordMimeType('video/webm, codecs="vp8"'), "maybe");
-}, 'check MediaRecorder.canRecordMimeType() with video/webm and vp8');
+  assert_equals(MediaRecorder.canRecordMimeType("video/vp8"), "maybe");
+}, 'check MediaRecorder.canRecordMimeType() with video/vp8');
 
 test(function() {
   assert_equals(MediaRecorder.canRecordMimeType("audio/invalid"), "");
 }, 'check MediaRecorder.canRecordMimeType() with audio/invalid');
 
 test(function() {
-  assert_equals(MediaRecorder.canRecordMimeType("audio/webm;codecs=opus"), "maybe");
-}, 'check MediaRecorder.canRecordMimeType() with audio/webm and opus');
+  assert_equals(MediaRecorder.canRecordMimeType("audio/opus"), "maybe");
+}, 'check MediaRecorder.canRecordMimeType() with audio/opus');
 
 </script>