[shared storage] Implement 'with_lock' modifier options for Window and SharedStorageWorklet
Implement the { withLock: } option for the
modifier methods for Window and SharedStorageWorklet context. The
SharedStorageLockManager manages the state of the locks and locked
requests. It acts as the LockRequest receiver to listen to Granted()
calls to resolve those requests. The locks uses the shared storage
origin as the partitioning origin, and thus can interact with the
regular Web Locks API (i.e. navigator.locks.request()) from within
the shared storage worklet.
The locking function is gated behind
features::kSharedStorageWebLocks, which is checked in the browser
process in SharedStorageLockManager::SharedStorageUpdate().
Explainer PR(s):
Bug: 373899210
Change-Id: I7003d392076a65a9ff2d277f9f0c2791436d2f68
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6020796
Reviewed-by: Giovanni Ortuno Urquidi ortuno@chromium.org
Commit-Queue: Yao Xiao yaoxia@chromium.org
Cr-Commit-Position: refs/heads/main@{#1387751}