GitLab

v8::Persistent will leak on destruction by default, unless marked
as copyable. As such, we must call Reset() before destroying any
v8::Persistent with the default, non-copyable, traits.

Then we can remove the JS cleanup code added to the spellcheck tests.

R=avi@chromium.org

Bug: 866140, 1069111
Change-Id: I3da663bda02c8916c1a4ae5d21234c54311a1dab
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2161652
Auto-Submit: danakj <danakj@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: danakj <danakj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#762025}