Eagerly dispose of ScheduledActions (reland.)
The DOMTimer's ScheduledAction hold on to the script source and
state needed to execute the timer action. Let go of ShceduledAction's
resource early.
Apart from reducing the lifetime of script source, this is a speculative
fix for crashes reported in v8::PersistentValueVector::Clear() during
lazy sweeping of ScheduledAction objects.
R=
BUG=
Committed: https://crrev.com/11bd50343795ed1dc1977da91e9a1588687522fd
Review-Url: https://codereview.chromium.org/2552673002
Cr-Original-Commit-Position: refs/heads/master@{#436298}
Cr-Commit-Position: refs/heads/master@{#438503}
5 files changed
