Domain Reliability: Don't crash on shutdown with uploads pending

components/domain_reliability/dispatcher.h

 // 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.
 
 #ifndef COMPONENTS_DOMAIN_RELIABILITY_DISPATCHER_H_
 #define COMPONENTS_DOMAIN_RELIABILITY_DISPATCHER_H_
 
 #include <memory>
 #include <set>
 
@@ skipping 17 matching lines @@
   ~DomainReliabilityDispatcher();
 
   // Schedules |task| to be executed between |min_delay| and |max_delay| from
   // now. The task will be run at most |max_delay| from now; once |min_delay|
   // has passed, any call to |RunEligibleTasks| will run the task earlier than
   // that.
   void ScheduleTask(const base::Closure& task,
                     base::TimeDelta min_delay,
                     base::TimeDelta max_delay);
 
-  // Runs all tasks whose minimum delay has already passed.
+  // Runs all existing tasks whose minimum delay has already passed. Does not
+  // run tasks added by those existing tasks, even if their minimum delay has
+  // already passed.
   void RunEligibleTasks();
 
+  // Runs all waiting or eligible tasks, regardless of whether their minimum
+  // delay has passed.
+  void RunAllTasksForTesting();
+
  private:
   struct Task;
 
   // Adds |task| to the set of all tasks, but not the set of eligible tasks.
   void MakeTaskWaiting(Task* task);
 
   // Adds |task| to the set of eligible tasks, and also the set of all tasks
   // if not already there.
   void MakeTaskEligible(Task* task);
 
   // Runs |task|'s callback, removes it from both sets, and deletes it.
   void RunAndDeleteTask(Task* task);
 
   MockableTime* time_;
   std::set<std::unique_ptr<Task>> tasks_;
   std::set<Task*> eligible_tasks_;
 
   DISALLOW_COPY_AND_ASSIGN(DomainReliabilityDispatcher);
 };
 
 }  // namespace domain_reliability
 
 #endif