Disallow posting tasks to SequencedWorkerPools by default.
We have observed crash reports in which SequencedWorkerPool workers
were active while redirection to TaskScheduler was enabled. This can
happen if a task is posted to a SequencedWorkerPool before redirection
to TaskScheduler is enabled. With this CL, DumpWithoutCrashing() is
called if a task is posted to a SequencedWorkerPool too early. This
will help us find offending call sites.
A commented DCHECK is also added to find offending call sites. It
will be uncommented in a separate CL to avoid a revert of this CL
in case it fails on the waterfall.
BUG=622400
Committed: https://crrev.com/4606ada249a240e115a08a7c66409e8fdd457ea1
Committed: https://crrev.com/8fd22217395d50b6704109c7f1d4deff59f9a109
Review-Url: https://codereview.chromium.org/2445763002
Cr-Original-Original-Commit-Position: refs/heads/master@{#432913}
Cr-Original-Commit-Position: refs/heads/master@{#433237}
Cr-Commit-Position: refs/heads/master@{#433639}
11 files changed
