Prevent tracking based on link decoration via query string or fragment

[fmarier]

ITP 2.2 is reducing the lifetime of cookies set via document.cookie when the navigation came from a tracking-enabled page and the destination URL includes query string parameters or a fragment: https://webkit.org/blog/8828/intelligent-tracking-prevention-2-2/

We already block the third-party scripts that would be extracting these IDs and setting a first-party tracking cookie, but we could in theory go further by:

• emulating the cookie lifetime restriction, or
• stripping out tracking query string parameters (e.g. gclid and fbclid).

[fmarier]

Oops, wrong repo.

See brave/brave-browser#4239.