Expand the content settings permission string for extensions

The content settings API is now much more powerful, and the user should understand that. We added camera, microphone and geolocation to the permission string to warn the user that extensions can now change particularly sensitive settings.

BUG=459016

Review URL: https://codereview.chromium.org/933653002

Cr-Commit-Position: refs/heads/master@{#316493}
2 files changed