Ignore packets with reordered timestamps when doing BWE.

BUG=webrtc:4793

Review URL: https://codereview.webrtc.org/1254723006

Cr-Original-Commit-Position: refs/heads/master@{#9632}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: cfd5f96307c278bc73a70865034704410e1e4b3b
1 file changed