Pass settings model to ARDAppClient instead of individual settings.

webrtc/examples/objc/AppRTCMobile/ARDSettingsModel.m

Index: webrtc/examples/objc/AppRTCMobile/ARDSettingsModel.m
diff --git a/webrtc/examples/objc/AppRTCMobile/ios/ARDSettingsModel.m b/webrtc/examples/objc/AppRTCMobile/ARDSettingsModel.m
similarity index 97%
rename from webrtc/examples/objc/AppRTCMobile/ios/ARDSettingsModel.m
rename to webrtc/examples/objc/AppRTCMobile/ARDSettingsModel.m
index 7514689add53b0d5ee747aeae930f0c27a977a13..1deb5233dbbdd52ea61c6ce4f4ca04c09c1dfa13 100644
--- a/webrtc/examples/objc/AppRTCMobile/ios/ARDSettingsModel.m
+++ b/webrtc/examples/objc/AppRTCMobile/ARDSettingsModel.m
@@ -17,9 +17,7 @@ static NSArray<NSString *> *videoResolutionsStaticValues() {
   return @[ @"640x480", @"960x540", @"1280x720" ];
 }
 
-static NSArray<NSString *> *videoCodecsStaticValues() {
-  return @[ @"H264", @"VP8", @"VP9" ];
-}
+static NSArray<NSString *> *videoCodecsStaticValues() { return @[ @"H264", @"VP8", @"VP9" ]; }
 
 @interface ARDSettingsModel () {
   ARDSettingsStore *_settingsStore;