Remove stl_util use from domain_reliability.

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>
 
 #include "base/callback_forward.h"
+#include "base/macros.h"
 #include "base/time/time.h"
 #include "components/domain_reliability/domain_reliability_export.h"
 
 namespace tracked_objects {
 class Location;
 }  // namespace tracked_objects
 
 namespace domain_reliability {
 
 class MockableTime;
@@ skipping 26 matching lines @@
   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<Task*> tasks_;
+  std::set<std::unique_ptr<Task>> tasks_;
   std::set<Task*> eligible_tasks_;
+
+  DISALLOW_COPY_AND_ASSIGN(DomainReliabilityDispatcher);
 };
 
 }  // namespace domain_reliability
 
 #endif