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

remoting/base/auto_thread_task_runner.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 "remoting/base/auto_thread_task_runner.h"
 
+#include <utility>
+
 #include "base/logging.h"
 
 namespace remoting {
 
 AutoThreadTaskRunner::AutoThreadTaskRunner(
     scoped_refptr<base::SingleThreadTaskRunner> task_runner,
-    const base::Closure& stop_task)
-    : stop_task_(stop_task),
-      task_runner_(task_runner) {
+    base::Closure stop_task)
+    : stop_task_(std::move(stop_task)), task_runner_(task_runner) {
   DCHECK(!stop_task_.is_null());
 }
 
 bool AutoThreadTaskRunner::PostDelayedTask(
     const tracked_objects::Location& from_here,
-    const base::Closure& task,
+    base::Closure task,
     base::TimeDelta delay) {
-  CHECK(task_runner_->PostDelayedTask(from_here, task, delay));
+  CHECK(task_runner_->PostDelayedTask(from_here, std::move(task), delay));
   return true;
 }
 
 bool AutoThreadTaskRunner::PostNonNestableDelayedTask(
     const tracked_objects::Location& from_here,
-    const base::Closure& task,
+    base::Closure task,
     base::TimeDelta delay) {
-  CHECK(task_runner_->PostNonNestableDelayedTask(from_here, task, delay));
+  CHECK(task_runner_->PostNonNestableDelayedTask(from_here, std::move(task),
+                                                 delay));
   return true;
 }
 
 bool AutoThreadTaskRunner::RunsTasksOnCurrentThread() const {
   return task_runner_->RunsTasksOnCurrentThread();
 }
 
 AutoThreadTaskRunner::~AutoThreadTaskRunner() {
-  CHECK(task_runner_->PostTask(FROM_HERE, stop_task_));
+  CHECK(task_runner_->PostTask(FROM_HERE, std::move(stop_task_)));
 }
 
 }  // namespace remoting