DCHECK tasks posted by TaskRunner::PostTask

base/task_scheduler/delayed_task_manager.cc

 // Copyright 2016 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/task_scheduler/delayed_task_manager.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/task_runner.h"
 #include "base/task_scheduler/task.h"
 
 namespace base {
 namespace internal {
 
 DelayedTaskManager::DelayedTaskManager(
     scoped_refptr<TaskRunner> service_thread_task_runner)
     : service_thread_task_runner_(std::move(service_thread_task_runner)) {
   DCHECK(service_thread_task_runner_);
 }
 
 DelayedTaskManager::~DelayedTaskManager() = default;
 
 void DelayedTaskManager::AddDelayedTask(
     std::unique_ptr<Task> task,
     const PostTaskNowCallback& post_task_now_callback) {
   DCHECK(task);
+  DCHECK(task->task);
 
   const TimeDelta delay = task->delay;
   DCHECK(!delay.is_zero());
 
   // TODO(fdoray): Use |task->delayed_run_time| on the service thread
   // MessageLoop rather than recomputing it from |delay|.
   service_thread_task_runner_->PostDelayedTask(
       FROM_HERE, Bind(post_task_now_callback, Passed(std::move(task))), delay);
 }
 
 }  // namespace internal
 }  // namespace base