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In this CL, we add appcontainer related attributes in PreSpawnTarget for renderer. Though we modify policy here, it is still not being honored, that will happen in next CL.

BUG=455496
R=cpu, jschuh, rvargas

Review URL: https://codereview.chromium.org/949943003

Cr-Commit-Position: refs/heads/master@{#319208}