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

media/cast/test/skewed_single_thread_task_runner.cc

 // Copyright 2014 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 "media/cast/test/skewed_single_thread_task_runner.h"
 
+#include <utility>
+
 #include "base/logging.h"
 #include "base/time/tick_clock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 namespace cast {
 namespace test {
 
 SkewedSingleThreadTaskRunner::SkewedSingleThreadTaskRunner(
     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner) :
     skew_(1.0),
     task_runner_(task_runner) {
 }
 
 SkewedSingleThreadTaskRunner::~SkewedSingleThreadTaskRunner() {}
 
 void SkewedSingleThreadTaskRunner::SetSkew(double skew) {
   skew_ = skew;
 }
 
 bool SkewedSingleThreadTaskRunner::PostDelayedTask(
     const tracked_objects::Location& from_here,
-    const base::Closure& task,
+    base::Closure task,
     base::TimeDelta delay) {
   return task_runner_->PostDelayedTask(
-      from_here,
-      task,
+      from_here, std::move(task),
       base::TimeDelta::FromMicroseconds(delay.InMicroseconds() * skew_));
 }
 
 bool SkewedSingleThreadTaskRunner::RunsTasksOnCurrentThread() const {
   return task_runner_->RunsTasksOnCurrentThread();
 }
 
 bool SkewedSingleThreadTaskRunner::PostNonNestableDelayedTask(
     const tracked_objects::Location& from_here,
-    const base::Closure& task,
+    base::Closure task,
     base::TimeDelta delay) {
   return task_runner_->PostNonNestableDelayedTask(
-      from_here,
-      task,
+      from_here, std::move(task),
       base::TimeDelta::FromMicroseconds(delay.InMicroseconds() * skew_));
 }
 
 }  // namespace test
 }  // namespace cast
 }  // namespace media