There's a simpler utility now called `base::IsSupersetOfValue` which should be used in its place instead. Chromium change: https://chromium.googlesource.com/chromium/src/+/e327ad618f08457abd76bb11ee6b35b5e70a76c5 commit e327ad618f08457abd76bb11ee6b35b5e70a76c5 Author: Chris Fredrickson <cfredric@chromium.org> Date: Wed Mar 26 11:40:50 2025 -0700 Remove unused base::test::ExpectDict* helpers Fixed: 406012428