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

chrome/browser/ui/webui/extensions/extension_settings_browsertest.cc

 // 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.
 
 #include "chrome/browser/ui/webui/extensions/extension_settings_browsertest.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/files/file_path.h"
@@ skipping 133 matching lines @@
   Profile* profile = GetProfile();
   ExtensionService* service =
       extensions::ExtensionSystem::Get(profile)->extension_service();
   extensions::ExtensionRegistry* registry =
       extensions::ExtensionRegistry::Get(profile);
   service->set_show_extensions_prompts(false);
   size_t num_before = registry->enabled_extensions().size();
   {
     extensions::ScopedTestDialogAutoConfirm auto_confirm(
         extensions::ScopedTestDialogAutoConfirm::ACCEPT);
-    scoped_ptr<ExtensionInstallPrompt> install_ui(
+    std::unique_ptr<ExtensionInstallPrompt> install_ui(
         new ExtensionInstallPrompt(
             browser()->tab_strip_model()->GetActiveWebContents()));
 
     base::FilePath crx_path = path;
     DCHECK(crx_path.Extension() == FILE_PATH_LITERAL(".crx"));
     if (crx_path.empty())
       return nullptr;
 
     scoped_refptr<extensions::CrxInstaller> installer(
         extensions::CrxInstaller::Create(service, std::move(install_ui)));
@@ skipping 30 matching lines @@
          iter != errors->end(); ++iter)
       VLOG(1) << *iter;
 
     return nullptr;
   }
 
   if (!observer_->WaitForExtensionViewsToLoad())
     return nullptr;
   return service->GetExtensionById(last_loaded_extension_id(), false);
 }