Adding lenient mode to WebRTC audio tests.

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 017d974e2ec6cc27b351afc5dd9e5b154553a024..1c7b5bf8ac61afa04d08635d3ce92469553af6b2 100644
--- a/content/test/data/media/peerconnection-call.html
+++ b/content/test/data/media/peerconnection-call.html
@@ -300,7 +300,7 @@
     remoteAudioTrack.enabled = enabled;
   }
 
-  function callAndEnsureAudioIsPlaying() {
+  function callAndEnsureAudioIsPlaying(beLenient) {
     createConnections(null);
     navigator.webkitGetUserMedia({audio: true, video: true},
       addStreamToBothConnectionsAndNegotiate, printGetUserMediaError);
@@ -310,7 +310,7 @@
     var onCallEstablished = function() {
       // Gather 50 samples per second for 2 seconds.
       gatherAudioLevelSamples(gSecondConnection, 100, 50, function(samples) {
-        verifyAudioIsPlaying(samples);
+        verifyAudioIsPlaying(samples, beLenient);
         eventOccured();
       });
 
@@ -321,8 +321,8 @@
     detectVideoPlaying('remote-view-2', onCallEstablished);
   }
 
-  function callAndEnsureAudioTrackMutingWorks() {
-    callAndEnsureAudioIsPlaying();
+  function callAndEnsureAudioTrackMutingWorks(beLenient) {
+    callAndEnsureAudioIsPlaying(beLenient);
     setAllEventsOccuredHandler(function() {
       // Call is up, now mute the track and check everything goes silent (give
       // it a small delay though, we don't expect it to happen instantly).
@@ -337,8 +337,8 @@
     });
   }
 
-  function callAndEnsureAudioTrackUnmutingWorks() {
-    callAndEnsureAudioIsPlaying();
+  function callAndEnsureAudioTrackUnmutingWorks(beLenient) {
+    callAndEnsureAudioIsPlaying(beLenient);
     setAllEventsOccuredHandler(function() {
       // Mute, wait a while, unmute, verify audio gets back up.
       enableRemoteAudio(gSecondConnection, false);
@@ -351,7 +351,7 @@
         // Sample for four seconds here; it can take a bit of time for audio to
         // get back up after the unmute.
         gatherAudioLevelSamples(gSecondConnection, 200, 50, function(samples) {
-          verifyAudioIsPlaying(samples);
+          verifyAudioIsPlaying(samples, beLenient);
           reportTestSuccess();
         });
       }, 1500);