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This will basically only affect painful page loads since we would taint
the data but made the method more general since logic is in the keyed
service.

Bug: 1001194
Change-Id: Ib19113a08251a17346697ef860a0270d5d8f6457
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1856439
Commit-Queue: Sophie Chang <sophiechang@chromium.org>
Reviewed-by: Michael Crouse <mcrouse@chromium.org>
Reviewed-by: Tarun Bansal <tbansal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#708589}