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

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

 // Copyright (c) 2012 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/install_extension_handler.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/strings/string_util.h"
@@ skipping 87 matching lines @@
     return;
   }
 
   Profile* profile = Profile::FromBrowserContext(
       web_ui()->GetWebContents()->GetBrowserContext());
 
   if (file_display_name_.MatchesExtension(FILE_PATH_LITERAL(".zip"))) {
     ZipFileInstaller::Create(ExtensionSystem::Get(profile)->extension_service())
         ->LoadFromZipFile(file_to_install_);
   } else {
-    scoped_ptr<ExtensionInstallPrompt> prompt(
+    std::unique_ptr<ExtensionInstallPrompt> prompt(
         new ExtensionInstallPrompt(web_ui()->GetWebContents()));
     scoped_refptr<CrxInstaller> crx_installer(CrxInstaller::Create(
         ExtensionSystem::Get(profile)->extension_service(), std::move(prompt)));
     crx_installer->set_error_on_unsupported_requirements(true);
     crx_installer->set_off_store_install_allow_reason(
         CrxInstaller::OffStoreInstallAllowedFromSettingsPage);
     crx_installer->set_install_immediately(true);
 
     if (file_display_name_.MatchesExtension(FILE_PATH_LITERAL(".user.js"))) {
       crx_installer->InstallUserScript(
@@ skipping 12 matching lines @@
 void InstallExtensionHandler::HandleInstallDirectoryMessage(
     const base::ListValue* args) {
   Profile* profile = Profile::FromBrowserContext(
       web_ui()->GetWebContents()->GetBrowserContext());
   UnpackedInstaller::Create(
       ExtensionSystem::Get(profile)->
           extension_service())->Load(file_to_install_);
 }
 
 }  // namespace extensions