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There are currently two separate implementations of the same code.
Upcoming refactors to split the installation and consent flow logic
from each other will make three implementations. Create a utils file so
that the Android runtimes can share the implementation of this method.

Fixed: 1046593
Change-Id: I55a20229f0150aea2f27df333245d31094cbee28
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2026651
Commit-Queue: Alexander Cooper <alcooper@chromium.org>
Reviewed-by: Klaus Weidner <klausw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#736226}