Fix a bunch of IWYU violators that don't include scoped_ptr.h

components/keyed_service/core/keyed_service_shutdown_notifier.h

 // Copyright 2015 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_KEYED_SERVICE_CORE_KEYED_SERVICE_SHUTDOWN_NOTIFIER_H_
 #define COMPONENTS_KEYED_SERVICE_CORE_KEYED_SERVICE_SHUTDOWN_NOTIFIER_H_
 
 #include "base/callback_list.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "components/keyed_service/core/keyed_service.h"
 
 // This is a helper class for objects that depend on one or more keyed services,
 // but which cannot be keyed services themselves, for example because they don't
 // correspond 1:1 to a context, or because they have a different lifetime.
 //
 // To use this class, add a factory class and declare the dependencies there.
 // This class (being a KeyedService itself) will be shut down before its
 // dependencies and notify its observers.
 class KEYED_SERVICE_EXPORT KeyedServiceShutdownNotifier : public KeyedService {
@@ skipping 11 matching lines @@
  private:
   // KeyedService implementation:
   void Shutdown() override;
 
   base::CallbackList<void()> callback_list_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyedServiceShutdownNotifier);
 };
 
 #endif  // COMPONENTS_KEYED_SERVICE_CORE_KEYED_SERVICE_SHUTDOWN_NOTIFIER_H_