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

extensions/browser/test_extension_registry_observer.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 EXTENSIONS_BROWSER_TEST_EXTENSION_REGISTRY_OBSERVER_H_
 #define EXTENSIONS_BROWSER_TEST_EXTENSION_REGISTRY_OBSERVER_H_
 
+#include <memory>
 #include <string>
 
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/scoped_observer.h"
 #include "extensions/browser/extension_registry_observer.h"
 
 namespace extensions {
 class ExtensionRegistry;
 
 // A helper class that listen for ExtensionRegistry notifications.
 class TestExtensionRegistryObserver : public ExtensionRegistryObserver {
  public:
   // If |extension_id| is provided, listens only to events relating to that
@@ skipping 20 matching lines @@
                                   const std::string& old_name) override;
   void OnExtensionUninstalled(content::BrowserContext* browser_context,
                               const Extension* extension,
                               extensions::UninstallReason reason) override;
   void OnExtensionLoaded(content::BrowserContext* browser_context,
                          const Extension* extension) override;
   void OnExtensionUnloaded(content::BrowserContext* browser_context,
                            const Extension* extension,
                            UnloadedExtensionInfo::Reason reason) override;
 
-  const Extension* Wait(scoped_ptr<Waiter>* waiter);
+  const Extension* Wait(std::unique_ptr<Waiter>* waiter);
 
-  scoped_ptr<Waiter> will_be_installed_waiter_;
-  scoped_ptr<Waiter> uninstalled_waiter_;
-  scoped_ptr<Waiter> loaded_waiter_;
-  scoped_ptr<Waiter> unloaded_waiter_;
+  std::unique_ptr<Waiter> will_be_installed_waiter_;
+  std::unique_ptr<Waiter> uninstalled_waiter_;
+  std::unique_ptr<Waiter> loaded_waiter_;
+  std::unique_ptr<Waiter> unloaded_waiter_;
 
   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
       extension_registry_observer_;
 
   std::string extension_id_;
 
   DISALLOW_COPY_AND_ASSIGN(TestExtensionRegistryObserver);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_TEST_EXTENSION_REGISTRY_OBSERVER_H_