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

content/browser/service_worker/service_worker_database_task_manager.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 CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DATABASE_TASK_MANAGER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DATABASE_TASK_MANAGER_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "content/common/content_export.h"
 
 namespace base {
 class SequencedTaskRunner;
 }
 
 namespace content {
 
 // Used to sequence ServiceWorkerDatabase tasks. Vends two task runners: one
 // that blocks shutdown and one that doesn't. The task runners use the same
@@ skipping 47 matching lines @@
 
  private:
   scoped_refptr<base::SequencedTaskRunner> task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(MockServiceWorkerDatabaseTaskManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DATABASE_TASK_MANAGER_H_