Update API for Objective-C RTCStats.

webrtc/api/objc/RTCStats.h

Index: webrtc/api/objc/RTCStats.h
diff --git a/webrtc/api/objc/RTCStats.h b/webrtc/api/objc/RTCStats.h
new file mode 100644
index 0000000000000000000000000000000000000000..f4303166d5e7d32cf4d9d356eb663d326e8cb057
--- /dev/null
+++ b/webrtc/api/objc/RTCStats.h
@@ -0,0 +1,35 @@
+/*
+ *  Copyright 2015 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>
+
+@class RTCPair;
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface RTCStats : NSObject
+
+//** Time since 1970-01-01T00:00:00Z in milliseconds. */
+@property(nonatomic, readonly) CFTimeInterval timestamp;
+
+//** The type of stats held by this object. */
+@property(nonatomic, readonly) NSString *type;
+
+//** The identifier for this object. */
+@property(nonatomic, readonly) NSString *id;
+
+//** A dictionary holding the actual stats. */
+@property(nonatomic, readonly) NSDictionary<NSString *, NSString *> *values;
+
+- (instancetype)init NS_UNAVAILABLE;
+
+@end
+
+NS_ASSUME_NONNULL_END