Mark SequencedWorkerPool::GetWorkerPoolForCurrentThread() as deprecated.

base/threading/sequenced_worker_pool.h

Index: base/threading/sequenced_worker_pool.h
diff --git a/base/threading/sequenced_worker_pool.h b/base/threading/sequenced_worker_pool.h
index 53bb153068c1390a0c422dd7bc2ae22adad9c8d0..68f15dece27c809ab840a37a3c2bd2761653d3b2 100644
--- a/base/threading/sequenced_worker_pool.h
+++ b/base/threading/sequenced_worker_pool.h
@@ -166,6 +166,12 @@ class BASE_EXPORT SequencedWorkerPool : public TaskRunner {
 
   // Returns the SequencedWorkerPool that owns this thread, or null if the
   // current thread is not a SequencedWorkerPool worker thread.
+  //
+  // Always returns nullptr when SequencedWorkerPool is redirected to
+  // TaskScheduler.
+  //
+  // DEPRECATED. The only remaining use is in

[danakj, 2016/09/30 19:14:55]

Can you say what people should use instead?

[gab, 2016/09/30 19:24:01]

IMO something like:

// DEPRECATED. Use SequencedTaskRunnerHandle::Get() instead. Consequentially the
only remaining use case is in sequenced_task_runner_handle.cc to implement that
and will soon be removed along with SequencedWorkerPool :
http://crbug.com/622400.

[fdoray, 2016/09/30 19:28:55]

Done.

+  // base/threading/sequenced_task_runner_handle.cc.
   static scoped_refptr<SequencedWorkerPool> GetWorkerPoolForCurrentThread();
 
   // Returns a unique token that can be used to sequence tasks posted to