Split the Media permission into Camera/Microphone in Origin Info bubble

      Split the 'Media' permission into two separate permissions ('Camera' and
'Microphone') in the Origin Info bubble for Android and Desktop. Also
deprecated the _MEDIASTREAM content setting, which was a way of storing
this 'grouped' permission setting.

BUG=433170

Review URL: https://codereview.chromium.org/813183002

Cr-Commit-Position: refs/heads/master@{#312025}