Automated Commit: Committing new LKGM version 10278.0.0 for chromeos.

TBR=chrome-os-gardeners@google.com

Change-Id: Id5bd2107c071a3f63eea686b66503eb45da52941
Reviewed-on: https://chromium-review.googlesource.com/850734Reviewed-by: ChromeOS Commit Bot <chromeos-commit-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#526990}

chromeos/CHROMEOS_LKGM

-10232.0.0
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+10278.0.0
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