Replace Closure in TaskRunner::PostTask with OneShotCallback

base/task_scheduler/task_scheduler_impl.cc

Index: base/task_scheduler/task_scheduler_impl.cc
diff --git a/base/task_scheduler/task_scheduler_impl.cc b/base/task_scheduler/task_scheduler_impl.cc
index d93c62023e8107b963f6747501dd253fd0da1173..df44d3097ee3229810499bd07d810bc3631dd01f 100644
--- a/base/task_scheduler/task_scheduler_impl.cc
+++ b/base/task_scheduler/task_scheduler_impl.cc
@@ -38,10 +38,10 @@ TaskSchedulerImpl::~TaskSchedulerImpl() {
 void TaskSchedulerImpl::PostTaskWithTraits(
     const tracked_objects::Location& from_here,
     const TaskTraits& traits,
-    const Closure& task) {
+    OnceClosure task) {
   // Post |task| as part of a one-off single-task Sequence.
   GetWorkerPoolForTraits(traits)->PostTaskWithSequence(
-      MakeUnique<Task>(from_here, task, traits, TimeDelta()),
+      MakeUnique<Task>(from_here, std::move(task), traits, TimeDelta()),
       make_scoped_refptr(new Sequence), nullptr);
 }