1873415 - Migration the existing partitioned cookies to CHIPS

Status: ASSIGNED

(Core :: Privacy: Anti-Tracking, task)

Description

[Tim Huang[:timhuang]]

With 3rd party cookie deprecation, we will no longer send third-party cookies without partitioned attribution. This could potentially cause an undesirable user experience while we ship 3rd party cookie deprecation. To provide a smooth transition, we will migrate the existing partitioned third-party cookies with CHIPS. For migration, we would like to

• Add partitioned cookie attribution to all existing partitioned cookies
• Set an expiration time to existing partitioned cookies so that we can clear partitioned cookies that don't get used once they have expired.

Comment 1

[Tim Huang[:timhuang]]

Attachment: Bug 1873415 - Part 1: Implement cookie DB migration to migrate partitioned cookies. r?edgul!,bvandersloot!

This patch implements the cookie DB imgration to version 14. The
migration set the isPartitionedAttributeSet flag and update the expiry
time to 30 days. The purpose of this migration is to remove unnecessay
partitioned cookies once CHIPS is enabled.

Comment 2

[Tim Huang[:timhuang]]

Attachment: Bug 1873415 - Part 2: Add a test to verify cookie DB migration to version 14. r?edgul!,bvandersloot!

This patch adds a test to verify the behavior of cookie DB migration to
version 14.

Depends on D203427