Move FileEnumerator to its own file, do some refactoring.

chrome/installer/setup/uninstall.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.
 //
 // This file defines the methods useful for uninstalling Chrome.
 
 #include "chrome/installer/setup/uninstall.h"
 
 #include <windows.h>
 
 #include <vector>
 
 #include "base/file_util.h"
+#include "base/files/file_enumerator.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/registry.h"
 #include "base/win/scoped_handle.h"
 #include "base/win/shortcut.h"
 #include "base/win/windows_version.h"
@@ skipping 222 matching lines @@
     if (remove_setup)
       VLOG(1) << "Removing setup.exe.";
   }
 }
 
 // Removes all files from the installer directory, leaving setup.exe iff
 // |remove_setup| is false.
 // Returns false in case of an error.
 bool RemoveInstallerFiles(const base::FilePath& installer_directory,
                           bool remove_setup) {
-  using file_util::FileEnumerator;
-  FileEnumerator file_enumerator(
+  base::FileEnumerator file_enumerator(
       installer_directory,
       false,
-      FileEnumerator::FILES | FileEnumerator::DIRECTORIES);
+      base::FileEnumerator::FILES | base::FileEnumerator::DIRECTORIES);
   bool success = true;
 
   base::FilePath setup_exe_base_name(installer::kSetupExe);
 
   while (true) {
     base::FilePath to_delete(file_enumerator.Next());
     if (to_delete.empty())
       break;
     if (!remove_setup && to_delete.BaseName() == setup_exe_base_name)
       continue;
@@ skipping 295 matching lines @@
 
   base::FilePath installer_directory;
   if (target_path.IsParent(setup_exe))
     installer_directory = setup_exe.DirName();
 
   // Enumerate all the files in target_path recursively (breadth-first).
   // We delete a file or folder unless it is a parent/child of the installer
   // directory. For parents of the installer directory, we will later recurse
   // and delete all the children (that are not also parents/children of the
   // installer directory).
-  using file_util::FileEnumerator;
-  FileEnumerator file_enumerator(
-      target_path, true, FileEnumerator::FILES | FileEnumerator::DIRECTORIES);
+  base::FileEnumerator file_enumerator(target_path, true,
+      base::FileEnumerator::FILES | base::FileEnumerator::DIRECTORIES);
   while (true) {
     base::FilePath to_delete(file_enumerator.Next());
     if (to_delete.empty())
       break;
     if (to_delete.BaseName().value() == installer::kChromeAppHostExe)
       continue;
     if (!installer_directory.empty() &&
         (to_delete == installer_directory ||
          installer_directory.IsParent(to_delete) ||
          to_delete.IsParent(installer_directory))) {
       continue;
     }
 
     VLOG(1) << "Deleting install path " << to_delete.value();
     if (!file_util::Delete(to_delete, true)) {
       LOG(ERROR) << "Failed to delete path (1st try): " << to_delete.value();
       if (installer_state.FindProduct(BrowserDistribution::CHROME_FRAME)) {
         // We don't try killing Chrome processes for Chrome Frame builds since
         // that is unlikely to help. Instead, schedule files for deletion and
         // return a value that will trigger a reboot prompt.
-        FileEnumerator::FindInfo find_info;
-        file_enumerator.GetFindInfo(&find_info);
-        if (FileEnumerator::IsDirectory(find_info))
+        base::FileEnumerator::FileInfo find_info = file_enumerator.GetInfo();
+        if (find_info.IsDirectory())
           ScheduleDirectoryForDeletion(to_delete.value().c_str());
         else
           ScheduleFileSystemEntityForDeletion(to_delete.value().c_str());
         result = DELETE_REQUIRES_REBOOT;
       } else {
         // Try closing any running Chrome processes and deleting files once
         // again.
         CloseAllChromeProcesses();
         if (!file_util::Delete(to_delete, true)) {
           LOG(ERROR) << "Failed to delete path (2nd try): "
@@ skipping 816 matching lines @@
     // deletion unconditionally. If they are not empty, the session manager
     // will not delete them on reboot.
     ScheduleParentAndGrandparentForDeletion(target_path);
   } else if (DeleteApplicationProductAndVendorDirectories(target_path) ==
              installer::DELETE_FAILED) {
     *uninstall_status = installer::UNINSTALL_FAILED;
   }
 }
 
 }  // namespace installer