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This CL adds model and manufacturer name to DeviceInfoSpecifics. They
will be used in a follow-up CL for non PII device name.

TBR=tbarzic@chromium.org,ramyan@chromium.org,djacobo@chromium.org

Bug: 1009454
Change-Id: Ic2b0472a88aaf20b52acfc54f3aebdd26dab7b4e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1834093
Commit-Queue: Himanshu Jaju <himanshujaju@chromium.org>
Reviewed-by: Mikel Astiz <mastiz@chromium.org>
Reviewed-by: Alex Chau <alexchau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#704657}