Remove uses of deprecated version of FileUtil::PathExists() in the installer....

chrome/installer/util/work_item_list_unittest.cc

Index: chrome/installer/util/work_item_list_unittest.cc
===================================================================
--- chrome/installer/util/work_item_list_unittest.cc	(revision 24065)
+++ chrome/installer/util/work_item_list_unittest.cc	(working copy)
@@ -55,14 +55,14 @@
   scoped_ptr<WorkItemList> work_item_list(WorkItem::CreateWorkItemList());
   scoped_ptr<WorkItem> work_item;
 
-  std::wstring top_dir_to_create(test_dir_.ToWStringHack());
-  file_util::AppendToPath(&top_dir_to_create, L"a");
-  std::wstring dir_to_create(top_dir_to_create);
-  file_util::AppendToPath(&dir_to_create, L"b");
+  FilePath top_dir_to_create(test_dir_);
+  top_dir_to_create = top_dir_to_create.AppendASCII("a");
+  FilePath dir_to_create(top_dir_to_create);
+  dir_to_create = dir_to_create.AppendASCII("b");
   ASSERT_FALSE(file_util::PathExists(dir_to_create));
 
   work_item.reset(reinterpret_cast<WorkItem*>(
-      WorkItem::CreateCreateDirWorkItem(dir_to_create)));
+      WorkItem::CreateCreateDirWorkItem(dir_to_create.ToWStringHack())));
   EXPECT_TRUE(work_item_list->AddWorkItem(work_item.release()));
 
   std::wstring key_to_create(test_root);
@@ -104,14 +104,14 @@
   scoped_ptr<WorkItemList> work_item_list(WorkItem::CreateWorkItemList());
   scoped_ptr<WorkItem> work_item;
 
-  std::wstring top_dir_to_create(test_dir_.ToWStringHack());
-  file_util::AppendToPath(&top_dir_to_create, L"a");
-  std::wstring dir_to_create(top_dir_to_create);
-  file_util::AppendToPath(&dir_to_create, L"b");
+  FilePath top_dir_to_create(test_dir_);
+  top_dir_to_create = top_dir_to_create.AppendASCII("a");
+  FilePath dir_to_create(top_dir_to_create);
+  dir_to_create = dir_to_create.AppendASCII("b");
   ASSERT_FALSE(file_util::PathExists(dir_to_create));
 
   work_item.reset(reinterpret_cast<WorkItem*>(
-      WorkItem::CreateCreateDirWorkItem(dir_to_create)));
+      WorkItem::CreateCreateDirWorkItem(dir_to_create.ToWStringHack())));
   EXPECT_TRUE(work_item_list->AddWorkItem(work_item.release()));
 
   std::wstring key_to_create(test_root);