Capture/Replay: Drop context ID from file and frame func names This is needed when we want to be able to deal with swap called from different contexts. Bug: angleproject:7911 Change-Id: I83023308109852179f434be2290b33b7844ddcda Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4236540 Reviewed-by: Cody Northrop <cnorthrop@google.com> Commit-Queue: Cody Northrop <cnorthrop@google.com>