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There are enough of them now that I think it makes sense to split them
out.

Bug: None
Change-Id: I503872e8877fc5f623e87550f5acab3b7d8a3650
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2302490
Commit-Queue: Mohamed Heikal <mheikal@chromium.org>
Auto-Submit: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Mohamed Heikal <mheikal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#789528}