Update ice server provider response format in iOS AppRTCMobile

webrtc/examples/BUILD.gn

Index: webrtc/examples/BUILD.gn
diff --git a/webrtc/examples/BUILD.gn b/webrtc/examples/BUILD.gn
index ca4f70667f56edf95c299a99842998b47c98ce13..cf0c19525adc08ba1b83af2ecb86f840e50b7df6 100644
--- a/webrtc/examples/BUILD.gn
+++ b/webrtc/examples/BUILD.gn
@@ -192,8 +192,6 @@ if (is_ios || (is_mac && target_cpu != "x86")) {
       "objc/AppRTCMobile/ARDAppEngineClient.m",
       "objc/AppRTCMobile/ARDBitrateTracker.h",
       "objc/AppRTCMobile/ARDBitrateTracker.m",
-      "objc/AppRTCMobile/ARDCEODTURNClient.h",
-      "objc/AppRTCMobile/ARDCEODTURNClient.m",
       "objc/AppRTCMobile/ARDJoinResponse+Internal.h",
       "objc/AppRTCMobile/ARDJoinResponse.h",
       "objc/AppRTCMobile/ARDJoinResponse.m",
@@ -208,7 +206,9 @@ if (is_ios || (is_mac && target_cpu != "x86")) {
       "objc/AppRTCMobile/ARDSignalingMessage.m",
       "objc/AppRTCMobile/ARDStatsBuilder.h",
       "objc/AppRTCMobile/ARDStatsBuilder.m",
+      "objc/AppRTCMobile/ARDTURNClient+Internal.h",
       "objc/AppRTCMobile/ARDTURNClient.h",
+      "objc/AppRTCMobile/ARDTURNClient.m",
       "objc/AppRTCMobile/ARDWebSocketChannel.h",
       "objc/AppRTCMobile/ARDWebSocketChannel.m",
       "objc/AppRTCMobile/RTCIceCandidate+JSON.h",