Modify the parameter type of PeerConnectionObserver callback OnAddTrack.
Change the second parameter type to a const reference of vector so that
the vector will not be copied.
BUG=none
Review-Url: https://codereview.webrtc.org/2551603003
Cr-Original-Commit-Position: refs/heads/master@{#15396}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: c63b89468682eef761a6d444d1fd6445d7a624ed
diff --git a/api/peerconnectioninterface.h b/api/peerconnectioninterface.h
index e14b79c..54fae2b 100644
--- a/api/peerconnectioninterface.h
+++ b/api/peerconnectioninterface.h
@@ -603,7 +603,7 @@
// implement it.
virtual void OnAddTrack(
rtc::scoped_refptr<RtpReceiverInterface> receiver,
- std::vector<rtc::scoped_refptr<MediaStreamInterface>> streams) {}
+ const std::vector<rtc::scoped_refptr<MediaStreamInterface>>& streams) {}
protected:
// Dtor protected as objects shouldn't be deleted via this interface.
