Handle rejected promises better for workers.
Rework how the rejected promises that v8 reports are processed in
a worker context, attaching the queue containing them to
WorkerScriptController, which is then drained by the worker thread's
task observer.
Along with that, make the individual rejected promises Oilpan friendly.
R=haraken
BUG=420515
Review URL: https://codereview.chromium.org/897523002
git-svn-id: svn://svn.chromium.org/blink/trunk@189785 bbb929c8-8fbe-4397-9dbb-9b2b20218538
9 files changed
