Replace Closure in TaskRunner::PostTask with OneShotCallback

base/threading/worker_pool_win.cc

Index: base/threading/worker_pool_win.cc
diff --git a/base/threading/worker_pool_win.cc b/base/threading/worker_pool_win.cc
index 575caaa6ba803079b4b37991de26026934682c0b..f1d7da27c29fb1bd4a16c1dd72ad182dbb02db85 100644
--- a/base/threading/worker_pool_win.cc
+++ b/base/threading/worker_pool_win.cc
@@ -27,7 +27,7 @@ DWORD CALLBACK WorkItemCallback(void* param) {
 
   tracked_objects::TaskStopwatch stopwatch;
   stopwatch.Start();
-  pending_task->task.Run();
+  std::move(pending_task->task).Run();
   stopwatch.Stop();
 
   g_worker_pool_running_on_this_thread.Get().Set(false);
@@ -58,8 +58,9 @@ bool PostTaskInternal(PendingTask* pending_task, bool task_is_slow) {
 
 // static
 bool WorkerPool::PostTask(const tracked_objects::Location& from_here,
-                          const base::Closure& task, bool task_is_slow) {
-  PendingTask* pending_task = new PendingTask(from_here, task);
+                          base::OnceClosure task,
+                          bool task_is_slow) {
+  PendingTask* pending_task = new PendingTask(from_here, std::move(task));
   return PostTaskInternal(pending_task, task_is_slow);
 }