Introduce a file-manager-new-ui flag for the new UI of Files.app.

chrome/browser/extensions/component_loader.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/extensions/component_loader.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/path_service.h"
@@ skipping 221 matching lines @@
       component_extensions_.begin();
   for (; it != component_extensions_.end(); ++it)
     if (it->extension_id == id)
       return true;
   return false;
 }
 
 void ComponentLoader::AddFileManagerExtension() {
 #if defined(FILE_MANAGER_EXTENSION)
   const CommandLine* command_line = CommandLine::ForCurrentProcess();
-  int manifest_id = command_line->HasSwitch(switches::kFileManagerPackaged) ?
-      IDR_FILEMANAGER_MANIFEST :
-      IDR_FILEMANAGER_MANIFEST_V1;
+  int manifest_id;
+  if (command_line->HasSwitch(switches::kFileManagerPackaged))
+    manifest_id = IDR_FILEMANAGER_MANIFEST;
+  else if (command_line->HasSwitch(switches::kFileManagerNewUI))
+    manifest_id = IDR_FILEMANAGER_MANIFEST_NEW_UI;
+  else
+    manifest_id = IDR_FILEMANAGER_MANIFEST_V1;
 #ifndef NDEBUG
   if (command_line->HasSwitch(switches::kFileManagerExtensionPath)) {
     base::FilePath filemgr_extension_path(
         command_line->GetSwitchValuePath(switches::kFileManagerExtensionPath));
     Add(manifest_id, filemgr_extension_path);
     return;
   }
 #endif  // NDEBUG
   Add(manifest_id, base::FilePath(FILE_PATH_LITERAL("file_manager")));
 #endif  // defined(FILE_MANAGER_EXTENSION)
@@ skipping 216 matching lines @@
 void ComponentLoader::RegisterUserPrefs(PrefRegistrySyncable* registry) {
   registry->RegisterStringPref(prefs::kEnterpriseWebStoreURL,
                                std::string() /* default_value */,
                                PrefRegistrySyncable::UNSYNCABLE_PREF);
   registry->RegisterStringPref(prefs::kEnterpriseWebStoreName,
                                std::string() /* default_value */,
                                PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 }  // namespace extensions