Pass ownership of candidate to PeerConnection::OnIceCandidate

webrtc/pc/peerconnection.h

Index: webrtc/pc/peerconnection.h
diff --git a/webrtc/pc/peerconnection.h b/webrtc/pc/peerconnection.h
index 43a2c7078d88d83b3710b71f4182483c0de56f10..2aa634c7002703b61bdd78621fe057034c287145 100644
--- a/webrtc/pc/peerconnection.h
+++ b/webrtc/pc/peerconnection.h
@@ -205,7 +205,8 @@ class PeerConnection : public PeerConnectionInterface,
   // Implements IceObserver
   void OnIceConnectionStateChange(IceConnectionState new_state) override;
   void OnIceGatheringChange(IceGatheringState new_state) override;
-  void OnIceCandidate(const IceCandidateInterface* candidate) override;
+  void OnIceCandidate(
+      std::unique_ptr<IceCandidateInterface> candidate) override;
   void OnIceCandidatesRemoved(
       const std::vector<cricket::Candidate>& candidates) override;
   void OnIceConnectionReceivingChange(bool receiving) override;