Automated IWYU fix for TaskRunner includes.

components/policy/core/common/policy_loader_ios.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_POLICY_CORE_COMMON_POLICY_LOADER_IOS_H_
 #define COMPONENTS_POLICY_CORE_COMMON_POLICY_LOADER_IOS_H_
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
+#include "base/sequenced_task_runner.h"
 #include "base/time/time.h"
 #include "components/policy/core/common/async_policy_loader.h"
 #include "components/policy/policy_export.h"
 
 namespace policy {
 
 // A policy loader that loads policy from the managed app configuration
 // introduced in iOS 7.
 class POLICY_EXPORT PolicyLoaderIOS : public AsyncPolicyLoader {
  public:
@@ skipping 23 matching lines @@
   // Used to Bind() a WeakPtr to |this| for the callback passed to the
   // |notification_observer_|.
   base::WeakPtrFactory<PolicyLoaderIOS> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PolicyLoaderIOS);
 };
 
 }  // namespace policy
 
 #endif  // COMPONENTS_POLICY_CORE_COMMON_POLICY_LOADER_IOS_H_