commit e329cb9df7aa3132c0687d46db3a3ffb2c065aed
author Eric Seckler <eseckler@chromium.org> Tue Aug 28 16:09:40 2018
committer Commit Bot <commit-bot@chromium.org> Tue Aug 28 16:09:40 2018
tree 35a85fa8de6b15af066c48690e6c724fb17301c6
parent 0527de47e7db6f6448483b88ff4be5da03e3698d

content: Add a TaskTraits extension and TaskExecutor for BrowserThreads.

This allows using //base/task/post_task.h for posting tasks to a
BrowserThread by specifying a BrowserThread::ID as a task trait.

Also adds a content::NonNestable task trait to support non-nestable
tasks in base::PostTaskWithTraits.

In the future, we will add further traits to facilitate scheduling
tasks onto different SequenceManager queues on the UI thread, see:
https://docs.google.com/document/d/1z1BDq9vzcEpkhN9LSPF5XMnZ0kLJ8mWWkNAi4OI7cos/edit?usp=sharing

Bug: 867421, 863341, 878356
Change-Id: Id8b7bc2e374917ceb421c7f6139790e6f1457511
Reviewed-on: https://chromium-review.googlesource.com/1181364
Commit-Queue: Eric Seckler <eseckler@chromium.org>
Reviewed-by: Sami Kyöstilä <skyostil@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Reviewed-by: François Doray <fdoray@chromium.org>
Reviewed-by: Alex Clarke <alexclarke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#586728}