Add a --no-finish option to the perf tests. We can use this to re-capture replays. Bug: angleproject:5134 Change-Id: I765e0bbb66cfdd822ffa981f2b5533157d024cac Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2449161 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com> Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>