Migrate base::TaskRunner from Closure to OnceClosure
After this CL, TaskRunner::PostTask and its family can take OnceClosure
in addition to Closure.
Most of the changes are mechanical replacement of Closure with OnceClosure
on TaskRunner family. Others are:
- Limit CriticalClosure from Closure to OnceClosure as no caller call
the resulting callback more than once
- Add several PostTaskAndReplyWithResult overloads for old Callback
version, for compatibility. (in base/task_scheduler/post_task.h)
- Update SequencedWorkerPool implementation for OnceClosure.
- Update task handling code in app_state.mm for OnceClosure, which is
needed to bring OnceClosure into a ObjC block.
BUG=704027
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel
Review-Url: https://codereview.chromium.org/2637843002
Cr-Commit-Position: refs/heads/master@{#462023}
110 files changed
