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

chrome/browser/extensions/api/settings_overrides/settings_overrides_api.h

 // Copyright 2013 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_SETTINGS_OVERRIDES_SETTINGS_OVERRIDES_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SETTINGS_OVERRIDES_SETTINGS_OVERRIDES_API_H_
 
 #include <set>
 #include <string>
 
@@ skipping 51 matching lines @@
   TemplateURLService* url_service_;
 
   // List of extensions waiting for the TemplateURLService to Load to
   // have search provider registered.
   PendingExtensions pending_extensions_;
 
   // Listen to extension load, unloaded notifications.
   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
       extension_registry_observer_;
 
-  scoped_ptr<TemplateURLService::Subscription> template_url_sub_;
+  std::unique_ptr<TemplateURLService::Subscription> template_url_sub_;
 
   DISALLOW_COPY_AND_ASSIGN(SettingsOverridesAPI);
 };
 
 template <>
 void BrowserContextKeyedAPIFactory<
     SettingsOverridesAPI>::DeclareFactoryDependencies();
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SETTINGS_OVERRIDES_SETTINGS_OVERRIDES_API_H_