I've added a DCHECK comparing two timestamps for Event Timing[1], and noticed that EventSender computers the event timestamp using CurrentTimeTicks() plus a time_offset_[2], thus making my DCHECKs fail. Would it be possilbe to modify the clock instead so that DoLeapForward advances the clock instead of having a separate variable? Otherwise the timestamps used by EventSender are not comparable with other timestamps.

[1] https://chromium-review.googlesource.com/c/chromium/src/+/1095736
[2] https://cs.chromium.org/chromium/src/content/shell/test_runner/event_sender.cc?l=2260&rcl=cb482510098927c8b6b9306772d35cfa65e02000