ScopedProfileKeepAlive

ScopedProfileKeepAlive is a strong reference to a Profile object, which is refcounted when the DestroyProfileOnBrowserClose flag is enabled. It is very similar to ScopedKeepAlive, which is for the browser process.

For other best practices related to managing the lifetime of a Profile, please see the "Managing lifetime of a Profile" section in //chrome/browser/profiles/README.md.