iOS: Add FlexFEC-03 field trial.

webrtc/sdk/objc/Framework/Classes/RTCFieldTrials.mm

Index: webrtc/sdk/objc/Framework/Classes/RTCFieldTrials.mm
diff --git a/webrtc/sdk/objc/Framework/Classes/RTCFieldTrials.mm b/webrtc/sdk/objc/Framework/Classes/RTCFieldTrials.mm
index ac3a4b3e48abeb53ed9a96de49c44ff3075a8e78..129efae4ca817443bd0e0448835f103ff8565833 100644
--- a/webrtc/sdk/objc/Framework/Classes/RTCFieldTrials.mm
+++ b/webrtc/sdk/objc/Framework/Classes/RTCFieldTrials.mm
@@ -20,6 +20,8 @@ static NSString * const kRTCEnableImprovedBitrateEstimateString =
     @"WebRTC-ImprovedBitrateEstimate/Enabled/";
 static NSString * const kRTCEnableAudioSendSideBweString =
     @"WebRTC-Audio-SendSideBwe/Enabled/";
+static NSString * const kRTCEnableFlexfec03String =
+    @"WebRTC-FlexFEC-03/Enabled/";
 static std::unique_ptr<char[]> gFieldTrialInitString;
 
 void RTCInitFieldTrials(RTCFieldTrialOptions options) {
@@ -27,8 +29,8 @@ void RTCInitFieldTrials(RTCFieldTrialOptions options) {
   if (options & RTCFieldTrialOptionsImprovedBitrateEstimate) {
     [fieldTrialInitString appendString:kRTCEnableImprovedBitrateEstimateString];
   }
-  if (options & RTCFieldTrialOptionsAudioSendSideBwe) {
-    [fieldTrialInitString appendString:kRTCEnableAudioSendSideBweString];
+  if (options & RTCFieldTrialOptionsFlexfec03) {

[tkchin_webrtc, 2016/11/21 18:16:59]

Shouldn't this be in a new block? Why is the audio field trial being removed?

[brandtr, 2016/11/21 19:43:06]

Yes, of course it should be a new block! And the audio field trial should still
be there. Sorry for this, very sloppy of me. I must have not double checked the
uploaded CL, because I thought it was so small...

[tkchin_webrtc, 2016/11/21 19:46:02]

No worries, I was just confused :)

+    [fieldTrialInitString appendString:kRTCEnableFlexfec03String];
   }
   size_t len = fieldTrialInitString.length + 1;
   gFieldTrialInitString.reset(new char[len]);