tree b4d2877f0e33436a2a5fe832fd712960b8cf09f9
parent 0f5400acfa40b4ecbf71bf44d925ea6ec9d3401d
author Qingsi Wang <qingsi@google.com> 1531870064 -0700
committer Qingsi Wang <qingsi@webrtc.org> 1531880762 +0000

Provide a default no-op implementation of RegisterUMAObserver in
PeerConnectionInterface.

This allows the implementations of PeerConnectionInterface to deprecate
this method.

Bug: None
Change-Id: I54b56206ebac2486f112e09137c9def225683297
Reviewed-on: https://webrtc-review.googlesource.com/89261
Reviewed-by: Steve Anton <steveanton@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24011}