Permissions: Allow control of individual requests in media permission infobars
This adds toggle switches to Camera and Microphone permission requests,
allowing the permissions to be allowed/blocked independently of each
other.
BUG=
458606
Committed:
https://crrev.com/2d1cc3ee786f0135b47d1258de67e166ac4eac9c
Cr-Commit-Position: refs/heads/master@{#398756}