Replace GetScalingSettings() with GetEnocderInfo() in TestEncoder
Replace GetScalingSettings() with GetEnocderInfo() in TestEncoder

Bug: webrtc:9890
Change-Id: I00c0d95739fe1e90df464a6a7402410ee070f840
Reviewed-on: https://webrtc-review.googlesource.com/c/109028
Commit-Queue: Erik Språng <3ab8c90c99d6dd7822e0fad803ab0211dd287ae5@webrtc.org>
Reviewed-by: Niels Moller <0057859e47d61d90529d0f66d9ef692cefedb46a@webrtc.org>
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#25500}
ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc