Fixed DTMF test on Android.

content/test/data/media/peerconnection-call.html

Index: content/test/data/media/peerconnection-call.html
diff --git a/content/test/data/media/peerconnection-call.html b/content/test/data/media/peerconnection-call.html
index 0cfe6e9783d55025de13fe54bf6876c10260f5dd..ae2571b901b405c83b491b37ea7ab9c5efcd50ac 100644
--- a/content/test/data/media/peerconnection-call.html
+++ b/content/test/data/media/peerconnection-call.html
@@ -27,12 +27,14 @@
   var maybeForceIsac16K = function(sdp) { return sdp; };
   function forceIsac16KInSdp() {
     maybeForceIsac16K = function(sdp) {
-      // Remove all other codecs (not the video codecs though).
+      // Remove all other codecs (not the video codecs though). Also leave
+      // 126 for DTMF.
       sdp = sdp.replace(/m=audio (\d+) RTP\/SAVPF.*\r\n/g,
-                        'm=audio $1 RTP/SAVPF 103\r\n');
+                        'm=audio $1 RTP/SAVPF 103 126\r\n');
       sdp = sdp.replace('a=fmtp:111 minptime=10', 'a=fmtp:103 minptime=10');
-      sdp = sdp.replace(/a=rtpmap:(?!103)\d{1,3} (?!X?VP8|red|ulpfec).*\r\n/g,
-                        '');
+      sdp = sdp.replace(
+          /a=rtpmap:(?!(103|126))\d{1,3} (?!X?VP8|red|ulpfec).*\r\n/g,
+          '');
       return sdp;
     };
   }