The header itself is deleted and the implementation has moved elsewhere making the inclusion unnecessary. Chromium change: https://chromium.googlesource.com/chromium/src/+/878f8351809ff802cae6173daaaac6f7bc05e2cd commit 878f8351809ff802cae6173daaaac6f7bc05e2cd Author: Sandor Major <sandormajor@chromium.org> Date: Tue Feb 18 12:16:02 2025 -0800 Move `ParsedPermissionsPolicyDeclaration` from Blink to Network service The network service is going to need access to the "storage-access" Permissions Policy. This is the third step of moving some of the Permissions Policy logic out of Blink to maintain a single implementation of https://w3c.github.io/webappsec-permissions-policy across Chromium. Bug: 382291442