Clean up unused param in RegistryOverrideManager

chrome/installer/util/work_item_list_unittest.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 <windows.h>
 
 #include "base/base_paths.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 11 matching lines @@
 namespace {
 
 const wchar_t kTestRoot[] = L"ListList";
 const wchar_t kDataStr[] = L"data_111";
 const wchar_t kName[] = L"name";
 
 class WorkItemListTest : public testing::Test {
  protected:
   virtual void SetUp() {
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
-    registry_override_manager_.OverrideRegistry(HKEY_CURRENT_USER, L"root_pit");
+    registry_override_manager_.OverrideRegistry(HKEY_CURRENT_USER);
   }
 
   virtual void TearDown() {
     logging::CloseLogFile();
   }
 
   base::ScopedTempDir temp_dir_;
   registry_util::RegistryOverrideManager registry_override_manager_;
 };
 
@@ skipping 236 matching lines @@
 
   work_item_list->Rollback();
 
   // Verify everything is rolled back.
   // The value must have been deleted first in roll back otherwise the key
   // can not be deleted.
   EXPECT_NE(ERROR_SUCCESS,
       key.Open(HKEY_CURRENT_USER, key_to_create.c_str(), KEY_READ));
   EXPECT_FALSE(base::PathExists(top_dir_to_create));
 }