This lays the groundwork for splitting up the
PeerConnectionInterface unit tests into multiple files so that
the tests can be organized better. The intent is for each unit
test file to declare a test fixture which subclasses
PeerConnectionUnitTestFixture and creates PeerConnectionWrappers
to write assertions against.
Bug: webrtc:8222
Change-Id: I21175b1e1828a6cd5012305a8a27faaf4eecf81c
Reviewed-on: https://webrtc-review.googlesource.com/1120
Commit-Queue: Steve Anton <steveanton@webrtc.org>
Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20004}
