588783adcd
RTCPeerConnectionFactory.createPeerConnection did not check the return value of the native createPeerConnection() - so when the native PC fails to be created, it could end up attempting to use a null pointer. The change makes it return nil when the creation fails. The application can then detect and respond to the failure. Review-Url: https://codereview.webrtc.org/2240633004 Cr-Commit-Position: refs/heads/master@{#13732}