Replace scoped_ptr with unique_ptr everywhere

webrtc/sdk/objc/Framework/Classes/RTCMediaConstraints+Private.h

Index: webrtc/sdk/objc/Framework/Classes/RTCMediaConstraints+Private.h
diff --git a/webrtc/sdk/objc/Framework/Classes/RTCMediaConstraints+Private.h b/webrtc/sdk/objc/Framework/Classes/RTCMediaConstraints+Private.h
index 3662c4486a4c189e55180abbca97a30608a57565..6ad3b6d8998898b2b36f5b188669525ca63675c4 100644
--- a/webrtc/sdk/objc/Framework/Classes/RTCMediaConstraints+Private.h
+++ b/webrtc/sdk/objc/Framework/Classes/RTCMediaConstraints+Private.h
@@ -10,6 +10,8 @@
 
 #import "WebRTC/RTCMediaConstraints.h"
 
+#include <memory>
+
 #include "webrtc/api/mediaconstraintsinterface.h"
 #include "webrtc/base/scoped_ptr.h"
 
@@ -41,7 +43,7 @@ NS_ASSUME_NONNULL_BEGIN
  * A MediaConstraints representation of this RTCMediaConstraints object. This is
  * needed to pass to the underlying C++ APIs.
  */
-- (rtc::scoped_ptr<webrtc::MediaConstraints>)nativeConstraints;
+- (std::unique_ptr<webrtc::MediaConstraints>)nativeConstraints;
 
 /** Return a native Constraints object representing these constraints */
 + (webrtc::MediaConstraintsInterface::Constraints)