Mark public ObjC APIs as explicitly visible.
BUG=
Review URL: https://codereview.webrtc.org/1899573002
Cr-Commit-Position: refs/heads/master@{#12431}
diff --git a/webrtc/api/objc/RTCConfiguration.h b/webrtc/api/objc/RTCConfiguration.h
index 144c8d3..38ae88d 100644
--- a/webrtc/api/objc/RTCConfiguration.h
+++ b/webrtc/api/objc/RTCConfiguration.h
@@ -10,6 +10,8 @@
#import <Foundation/Foundation.h>
+#import "webrtc/base/objc/RTCMacros.h"
+
@class RTCIceServer;
/**
@@ -50,6 +52,7 @@
NS_ASSUME_NONNULL_BEGIN
+RTC_EXPORT
@interface RTCConfiguration : NSObject
/** An array of Ice Servers available to be used by ICE. */