tree 738536a5382997a393017a551255415c3e5a19c7
parent f1e3cb418e5911a2c9e5b03100ff305204e2a631
author Jiawei Ou <ouj@fb.com> 1529536739 -0700
committer Commit Bot <commit-bot@chromium.org> 1529572970 +0000

Create a peer connection factory builder

Similar to the builder on android: https://cs.chromium.org/chromium/src/third_party/webrtc/sdk/android/api/org/webrtc/PeerConnectionFactory.java?rcl=b90e63c620877712e45ee320cfa25cb825bf5373&l=134

1. A builder will allow us to choose what module factories to provide and use default for the others.
2. A helper category is added to provide helpers functions for creating common builders.

Bug: None
Change-Id: I5889bdd7dc2a2aeded62ef5f2c2381edd07089b3
Reviewed-on: https://webrtc-review.googlesource.com/83280
Commit-Queue: Anders Carlsson <andersc@webrtc.org>
Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
Reviewed-by: Anders Carlsson <andersc@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23696}