Completely clear weak persistent references.
If weak processing determines that a WeakPersistent<T> is now pointing
to an otherwise unreferenced object, clear out and deallocate its
underlying PersistentNode.
We previously would only clear the persistent reference, but keep the
PersistentNode. This would lead to imprecise counts of live persistents,
potentially triggering false asserts of leaking persistents during thread
termination GCs.
R=
BUG=
Review-Url: https://codereview.chromium.org/2094973002
Cr-Commit-Position: refs/heads/master@{#401880}
1 file changed
