Update API for Objective-C RTCStats.

webrtc/api/objc/RTCStatsReport+Private.h

Index: webrtc/api/objc/RTCStatsReport+Private.h
diff --git a/webrtc/api/objc/RTCVideoFrame+Private.h b/webrtc/api/objc/RTCStatsReport+Private.h
similarity index 65%
copy from webrtc/api/objc/RTCVideoFrame+Private.h
copy to webrtc/api/objc/RTCStatsReport+Private.h
index 954344aee1b9c2095f03277bc1cc4a800e35e1a9..5b7dc32a7464f25bab748e1fd31f8d25e7737b16 100644
--- a/webrtc/api/objc/RTCVideoFrame+Private.h
+++ b/webrtc/api/objc/RTCStatsReport+Private.h
@@ -8,16 +8,16 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#import "RTCVideoFrame.h"
+#import "RTCStatsReport.h"
 
-#include "talk/media/base/videoframe.h"
+#include "talk/app/webrtc/statstypes.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
-@interface RTCVideoFrame ()
+@interface RTCStatsReport ()
 
-- (instancetype)initWithNativeFrame:(const cricket::VideoFrame *)nativeFrame
-    NS_DESIGNATED_INITIALIZER;
+/** Initialize an RTCStatsReport object from a native StatsReport. */
+- (instancetype)initWithNativeReport:(const webrtc::StatsReport &)nativeReport;
 
 @end