AEC3: Add flag for requiring a high pass filter effect before the AEC
AEC3: Add flag for requiring a high pass filter effect before the AEC

Bug: webrtc:11159, chromium:1030179
Change-Id: Ic6b686a36efa433156a66252394fa551b8ed1837
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/161227
Reviewed-by: Sam Zackrisson <b1a93beadfe1d2f7f0106ee02b6ffcdc950aa103@webrtc.org>
Commit-Queue: Per Åhgren <3616c2c8a2c30a769c5419f89b4a810ea6e2f079@webrtc.org>
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#29986}

TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc