Only Register() platform specific content settings types on different platforms
Content settings are not used on all platforms. Some content settings are only
used on desktop platforms, or desktop and android. We shouldn't register these
types on other platforms that aren't using them, so that we don't create unused
prefs for them and more importantly so that we don't sync settings to these
platforms which would go unused but be a potential privacy concern.
In this CL, an enum WebsiteSettingsInfo::Platform is added and used when
registering content settings to indicate which platform set it is applied to.
BUG=604632
Review-Url: https://codereview.chromium.org/1991623005
Cr-Commit-Position: refs/heads/master@{#398174}
9 files changed
