LCP/elementTiming: Expose 4ms-coarsened renderTime regardless of TAO (#48740)
Cross-origin isolation is more appropriate for render times than TAO,
as it's a document-level protection rather than resource-level.
Using FloorToMultiple instead of TimeClamper, as randomization is
both unnecessary here, and would create incompatible results between
different entries.
Bug: 373263977
Change-Id: I7715d26c7732b69078aa5bb2ce8614100932e971
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5930666
Reviewed-by: Michal Mocny mmocny@chromium.org
Commit-Queue: Noam Rosenthal nrosenthal@chromium.org
Reviewed-by: Ian Clelland iclelland@chromium.org
Cr-Commit-Position: refs/heads/main@{#1374558}
Co-authored-by: Noam Rosenthal nrosenthal@chromium.org