We add LoadFirstClassTime, which is timing the load of a hardcoded class
for the google3 split and Chrome split, and then ContextCreateTime3
which is just LoadFirstClassTime + the old ContextCreateTime2.
Low-Coverage-Reason: We are really in the weeds of Bundle startup.
Bug: 384764054
Change-Id: I6f4f333a76be8e8b059692e5f3fae1d3187e2aac
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6168956
Commit-Queue: Sam Maier <smaier@chromium.org>
Reviewed-by: Calder Kitagawa <ckitagawa@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1406738}
6e88109823