Oilpan: dispose ServiceWorker (and registration) objects earlier.
It is unsafe to keep a ServiceWorker registered with the embedder once
it has been determined to be unreachable by the garbage collector, but
not yet finalized, as it cannot be assumed to be in a valid state beyond
that point.
Hence, we detach and unregister the object during a pre-finalization step.
The same lifetime issue applies to ServiceWorkerRegistration, so extend
the same treatment to it also.
R=haraken
BUG=451692
Review URL: https://codereview.chromium.org/874003002
git-svn-id: svn://svn.chromium.org/blink/trunk@188949 bbb929c8-8fbe-4397-9dbb-9b2b20218538
5 files changed
