policy: Make auto-generated kChromePolicyDetails more readable.
policy: Make auto-generated kChromePolicyDetails more readable.

Annotate with policy name.

BUG=None

Review URL: https://codereview.chromium.org/1824663002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#382531}

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