Rename media constraints model and store.

webrtc/examples/objc/AppRTCMobile/ios/ARDSettingsStore.m

Index: webrtc/examples/objc/AppRTCMobile/ios/ARDSettingsStore.m
diff --git a/webrtc/examples/objc/AppRTCMobile/ios/ARDMediaConstraintsSettingsStore.m b/webrtc/examples/objc/AppRTCMobile/ios/ARDSettingsStore.m
similarity index 91%
rename from webrtc/examples/objc/AppRTCMobile/ios/ARDMediaConstraintsSettingsStore.m
rename to webrtc/examples/objc/AppRTCMobile/ios/ARDSettingsStore.m
index c8fb206575d73aa9f3bb22254d0da22b04a449a8..6b3642e00697f1581b04a487ae86da6f22f49818 100644
--- a/webrtc/examples/objc/AppRTCMobile/ios/ARDMediaConstraintsSettingsStore.m
+++ b/webrtc/examples/objc/AppRTCMobile/ios/ARDSettingsStore.m
@@ -8,13 +8,13 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#import "ARDMediaConstraintsSettingsStore.h"
+#import "ARDSettingsStore.h"
 
 static NSString *const kUserDefaultsMediaConstraintsKey =
     @"rtc_video_resolution_media_constraints_key";
 
 NS_ASSUME_NONNULL_BEGIN
-@implementation ARDMediaConstraintsSettingsStore
+@implementation ARDSettingsStore
 
 - (nullable NSString *)videoResolutionConstraintsSetting {
   return [[NSUserDefaults standardUserDefaults] objectForKey:kUserDefaultsMediaConstraintsKey];