The previous name packet queue 2 had no indication on what the
difference was compared to the regular packet queue. This rename makes
it easier to understand the codebase.
Additionally the PacketQueueInterface class was introduced to make the
class hierarchy easier to follow. The round robin packet queue did not
extend the packet queue so there was no reason for inheriting from the
specific implementation.
Bug: None
Change-Id: Idbce081c751fbacd927632f5e71220887d0b5991
Reviewed-on: https://webrtc-review.googlesource.com/49120
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21931}
