The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/81bc06645eda2bc80ac82983824418b6dab9dcec

commit 81bc06645eda2bc80ac82983824418b6dab9dcec
Author: guidou <guidou@chromium.org>
Date: Wed Nov 16 16:35:31 2016

Correctly initialize m_hasDataChannels field in RTCPeerConnection

BUG= 665884 

Review-Url: https://codereview.chromium.org/2507783002
Cr-Commit-Position: refs/heads/master@{#432514}

[modify] https://crrev.com/81bc06645eda2bc80ac82983824418b6dab9dcec/third_party/WebKit/Source/modules/peerconnection/RTCPeerConnection.cpp

Is it possible to implement testing that ensures members like this one are always properly initialized to prevent similar problems in the future?

Ping on MissingTests? It should be easy to write a unit test that checks that a freshly created connection doesn't have any data channels, no?

Another ping. Guido: can you please respond to #5?

Ping pong

Yes. Layout tests should test that. Filed issue 679297.