This is useful for debugging and has minimal effect on production code. Bug: webrtc:9510 Change-Id: I3a71f484a0d4e54999e376b7924b73230d86cd96 Reviewed-on: https://webrtc-review.googlesource.com/97607 Commit-Queue: Sebastian Jansson <srte@webrtc.org> Reviewed-by: Björn Terelius <terelius@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24557}