Add full stack test with weak 3g-like properties
Add full stack test with weak 3g-like properties

This test is verified to better catch the performance issues that were
fixed in issue 10275.

Bug: webrtc:10275, webrtc:10070
Change-Id: I4654f013b0fa08015af8572269b9df979e5a641f
Reviewed-on: https://webrtc-review.googlesource.com/c/125300
Reviewed-by: Rasmus Brandt <9545de3a34b925a736ae2b5ee593f3033f743a28@webrtc.org>
Commit-Queue: Erik Språng <3ab8c90c99d6dd7822e0fad803ab0211dd287ae5@webrtc.org>
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#26944}
ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc