Use OnceClosure in TestPendingTask

net/quic/test_tools/test_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 "net/quic/test_tools/test_task_runner.h"
 
 #include <algorithm>
 
 #include "net/quic/test_tools/mock_clock.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 22 matching lines @@
   return tasks_;
 }
 
 void TestTaskRunner::RunNextTask() {
   // Find the next task to run, advance the time to the correct time
   // and then run the task.
   std::vector<PostedTask>::iterator next = FindNextTask();
   DCHECK(next != tasks_.end());
   clock_->AdvanceTime(QuicTime::Delta::FromMicroseconds(
       (next->GetTimeToRun() - clock_->NowInTicks()).InMicroseconds()));
-  PostedTask task = *next;
+  PostedTask task = std::move(*next);
   tasks_.erase(next);
-  task.task.Run();
+  std::move(task.task).Run();
 }
 
 namespace {
 
 struct ShouldRunBeforeLessThan {
   bool operator()(const PostedTask& task1, const PostedTask& task2) const {
     return task1.ShouldRunBefore(task2);
   }
 };
 
 }  // namespace
 
 std::vector<PostedTask>::iterator TestTaskRunner::FindNextTask() {
   return std::min_element(tasks_.begin(), tasks_.end(),
                           ShouldRunBeforeLessThan());
 }
 
 }  // namespace test
 }  // namespace net