Pass Callback to TaskRunner by value and consume it on invocation (1)

base/threading/worker_pool_win.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/threading/worker_pool.h"
 
+#include <utility>
+
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/pending_task.h"
 #include "base/threading/thread_local.h"
 #include "base/trace_event/trace_event.h"
 #include "base/tracked_objects.h"
 
 namespace base {
 
@@ skipping 36 matching lines @@
     return false;
   }
 
   return true;
 }
 
 }  // namespace
 
 // 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::Closure task,
+                          bool task_is_slow) {
+  PendingTask* pending_task = new PendingTask(from_here, std::move(task));
   return PostTaskInternal(pending_task, task_is_slow);
 }
 
 // static
 bool WorkerPool::RunsTasksOnCurrentThread() {
   return GetWorkerPoolRunningOnThisThread()->Get();
 }
 
 }  // namespace base