mediacapabilities: ignore audio/red in tests

BUG=chromium:1240649,webrtc:11640

Change-Id: I9a0abeec057c64a17ce0f681664ae4c7c46eb706
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3100128
Reviewed-by: Johannes Kron <kron@chromium.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@chromium.org>
Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
Cr-Commit-Position: refs/heads/master@{#912633}

media-capabilities/decodingInfo.webrtc.html

@@ -152,7 +152,7 @@
 var validAudioCodecs = (() => {
   // Some codecs that are returned by getCapabilities() are not real codecs,
   // exclude these from the test.
-  var excludeList = [ 'audio/CN', 'audio/telephone-event' ];
+  var excludeList = [ 'audio/CN', 'audio/telephone-event', 'audio/red' ];
   var audioCodecs = [];
   RTCRtpReceiver.getCapabilities("audio")['codecs'].forEach(codec => {
     if (excludeList.indexOf(codec.mimeType) < 0 &&

media-capabilities/encodingInfo.webrtc.html

@@ -152,7 +152,7 @@
 var validAudioCodecs = (() => {
   // Some codecs that are returned by getCapabilities() are not real codecs,
   // exclude these from the test.
-  var excludeList = [ 'audio/CN', 'audio/telephone-event' ];
+  var excludeList = [ 'audio/CN', 'audio/telephone-event', 'audio/red' ];
   var audioCodecs = [];
   RTCRtpSender.getCapabilities("audio")['codecs'].forEach(codec => {
     if (excludeList.indexOf(codec.mimeType) < 0 &&