Convert //chrome/browser/extensions from scoped_ptr to std::unique_ptr

chrome/browser/extensions/api/networking_private/networking_private_ui_delegate_factory_impl.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 CHROME_BROWSER_EXTENSIONS_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_UI_DELEGATE_FACTORY_IMPL_H_
 #define CHROME_BROWSER_EXTENSIONS_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_UI_DELEGATE_FACTORY_IMPL_H_
 
 #include "base/macros.h"
 #include "extensions/browser/api/networking_private/networking_private_delegate_factory.h"
 
 namespace extensions {
 
 class NetworkingPrivateUIDelegateFactoryImpl
     : public NetworkingPrivateDelegateFactory::UIDelegateFactory {
  public:
   NetworkingPrivateUIDelegateFactoryImpl();
   ~NetworkingPrivateUIDelegateFactoryImpl() override;
 
-  scoped_ptr<NetworkingPrivateDelegate::UIDelegate> CreateDelegate() override;
+  std::unique_ptr<NetworkingPrivateDelegate::UIDelegate> CreateDelegate()
+      override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(NetworkingPrivateUIDelegateFactoryImpl);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_UI_DELEGATE_FACTORY_IMPL_H_