"warning: control reaches end of non-void function [-Wreturn-type]" Reported by gcc (8.3) In all the reported cases, the end of function is never actually reached. Add RTC_CHECK(false) to ensure the compiler is aware that this path is a dead-end. Bug: webrtc:12008 Change-Id: I7f816fde3d1897ed2774057c7e05da66e1895e60 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/189784 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Commit-Queue: Karl Wiberg <kwiberg@webrtc.org> Commit-Queue: Fabien VALLÉE <fabien.vallee@netgem.com> Cr-Commit-Position: refs/heads/master@{#32503}