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

chrome/browser/ui/ash/networking_config_delegate_chromeos.h

 // Copyright (c) 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_UI_ASH_NETWORKING_CONFIG_DELEGATE_CHROMEOS_H_
 #define CHROME_BROWSER_UI_ASH_NETWORKING_CONFIG_DELEGATE_CHROMEOS_H_
 
 #include <string>
 
 #include "ash/networking_config_delegate.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "content/public/browser/browser_context.h"
 
 namespace chromeos {
 
 // A class which allows the ash tray to retrieve extension provided networking
 // configuration through the networking config service.
 class NetworkingConfigDelegateChromeos : public ash::NetworkingConfigDelegate {
  public:
   NetworkingConfigDelegateChromeos();
   ~NetworkingConfigDelegateChromeos() override;
 
-  scoped_ptr<const ExtensionInfo> LookUpExtensionForNetwork(
+  std::unique_ptr<const ExtensionInfo> LookUpExtensionForNetwork(
       const std::string& service_path) override;
 
  private:
   std::string LookUpExtensionName(content::BrowserContext* context,
                                   std::string extension_id) const;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkingConfigDelegateChromeos);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_ASH_NETWORKING_CONFIG_DELEGATE_CHROMEOS_H_