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

components/keyed_service/content/browser_context_dependency_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 COMPONENTS_KEYED_SERVICE_CONTENT_BROWSER_CONTEXT_DEPENDENCY_MANAGER_H_
 #define COMPONENTS_KEYED_SERVICE_CONTENT_BROWSER_CONTEXT_DEPENDENCY_MANAGER_H_
 
 #include "base/callback_forward.h"
 #include "base/callback_list.h"
+#include "base/memory/scoped_ptr.h"
 #include "components/keyed_service/core/dependency_manager.h"
 #include "components/keyed_service/core/keyed_service_export.h"
 
 class BrowserContextKeyedBaseFactory;
 
 namespace base {
 template <typename T>
 struct DefaultSingletonTraits;
 }  // namespace base
 
@@ skipping 77 matching lines @@
   void DumpContextDependencies(base::SupportsUserData* context) const final;
 #endif  // NDEBUG
 
   // A list of callbacks to call just before executing
   // CreateBrowserContextServices() or CreateBrowserContextServicesForTest().
   base::CallbackList<void(content::BrowserContext*)>
       will_create_browser_context_services_callbacks_;
 };
 
 #endif  // COMPONENTS_KEYED_SERVICE_CONTENT_BROWSER_CONTEXT_DEPENDENCY_MANAGER_H_