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It returns true when there are any policies at the machine level,
whether that's from a platform provider, or from cloud policies.

Bug: 893626, 893628
Change-Id: I6e90ff54ee400a82df04c2f671d408d04b3e3bc5
Reviewed-on: https://chromium-review.googlesource.com/c/1269764
Commit-Queue: Nicolas Ouellet-Payeur <nicolaso@chromium.org>
Reviewed-by: Maksim Ivanov <emaxx@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600866}