Upstream commit: https://webrtc.googlesource.com/src/+/d9dd939d66573926eb4c7dc9c30949fd76a1b7eb Move safe_minmax.h to webrtc namespace Bug: webrtc:42232595 Change-Id: Ia3d96dfe1b1c25b6cc21bbd99d24ded7461924cd Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/378061 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Evan Shrubsole <eshr@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43942} Differential Revision: https://phabricator.services.mozilla.com/D243943