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

extensions/browser/extension_user_script_loader.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 EXTENSIONS_BROWSER_EXTENSION_USER_SCRIPT_LOADER_H_
 #define EXTENSIONS_BROWSER_EXTENSION_USER_SCRIPT_LOADER_H_
 
 #include "base/macros.h"
 #include "extensions/browser/extension_registry_observer.h"
 #include "extensions/browser/user_script_loader.h"
@@ skipping 22 matching lines @@
                             const HostID& host_id,
                             bool listen_for_extension_system_loaded);
   ~ExtensionUserScriptLoader() override;
 
   // A wrapper around the method to load user scripts, which is normally run on
   // the file thread. Exposed only for tests.
   void LoadScriptsForTest(UserScriptList* user_scripts);
 
  private:
   // UserScriptLoader:
-  void LoadScripts(scoped_ptr<UserScriptList> user_scripts,
+  void LoadScripts(std::unique_ptr<UserScriptList> user_scripts,
                    const std::set<HostID>& changed_hosts,
                    const std::set<int>& added_script_ids,
                    LoadScriptsCallback callback) override;
 
   // Updates |hosts_info_| to contain info for each element of
   //  |changed_hosts_|.
   void UpdateHostsInfo(const std::set<HostID>& changed_hosts);
 
   // ExtensionRegistryObserver:
   void OnExtensionUnloaded(content::BrowserContext* browser_context,
@@ skipping 14 matching lines @@
       extension_registry_observer_;
 
   base::WeakPtrFactory<ExtensionUserScriptLoader> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionUserScriptLoader);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSION_USER_SCRIPT_LOADER_H_