Rename media constraints model and store.
ARDMediaConstraintsModel -> ARDSettingsModel
ARDMediaConstraintsSettingsStore -> ARDSettingsStore
ARDMediaConstraintsModelTests -> ARDSettingsModelTests
Both classes will be used to storing other settings as well, so we need a
more appropriate naming.
BUG=webrtc:6654
Review-Url: https://codereview.webrtc.org/2479153002
Cr-Commit-Position: refs/heads/master@{#15002}
diff --git a/webrtc/examples/objc/AppRTCMobile/ios/ARDSettingsStore.h b/webrtc/examples/objc/AppRTCMobile/ios/ARDSettingsStore.h
new file mode 100644
index 0000000..1541e2d
--- /dev/null
+++ b/webrtc/examples/objc/AppRTCMobile/ios/ARDSettingsStore.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2016 The WebRTC Project Authors. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+/**
+ * Light-weight persistent store for user settings.
+ *
+ * It will persist between application launches and application updates.
+ */
+@interface ARDSettingsStore : NSObject
+
+/**
+ * Returns current video resolution media constraint string stored in the store.
+ */
+- (nullable NSString *)videoResolutionConstraintsSetting;
+
+/**
+ * Stores the provided value as video resolution media constraint.
+ * @param value the string to be stored
+ */
+- (void)setVideoResolutionConstraintsSetting:(NSString *)value;
+
+@end
+NS_ASSUME_NONNULL_END