Move FileEnumerator to its own file, do some refactoring.

webkit/database/database_tracker.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 "webkit/database/database_tracker.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/file_util.h"
+#include "base/files/file_enumerator.h"
 #include "base/message_loop_proxy.h"
 #include "base/platform_file.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "net/base/net_errors.h"
 #include "sql/connection.h"
 #include "sql/meta_table.h"
 #include "sql/transaction.h"
 #include "third_party/sqlite/sqlite3.h"
 #include "webkit/database/database_quota_client.h"
@@ skipping 382 matching lines @@
   base::FilePath origin_dir = db_dir_.Append(base::FilePath::FromWStringHack(
       UTF16ToWide(origin_identifier)));
 
   // Create a temporary directory to move possibly still existing databases to,
   // as we can't delete the origin directory on windows if it contains opened
   // files.
   base::FilePath new_origin_dir;
   file_util::CreateTemporaryDirInDir(db_dir_,
                                      kTemporaryDirectoryPrefix,
                                      &new_origin_dir);
-  file_util::FileEnumerator databases(
+  base::FileEnumerator databases(
       origin_dir,
       false,
-      file_util::FileEnumerator::FILES);
+      base::FileEnumerator::FILES);
   for (base::FilePath database = databases.Next(); !database.empty();
        database = databases.Next()) {
     base::FilePath new_file = new_origin_dir.Append(database.BaseName());
     file_util::Move(database, new_file);
   }
   file_util::Delete(origin_dir, true);
   file_util::Delete(new_origin_dir, true); // might fail on windows.
 
   databases_table_->DeleteOrigin(origin_identifier);
 
@@ skipping 21 matching lines @@
 
 bool DatabaseTracker::LazyInit() {
   if (!is_initialized_ && !shutting_down_) {
     DCHECK(!db_->is_open());
     DCHECK(!databases_table_.get());
     DCHECK(!meta_table_.get());
 
     // If there are left-over directories from failed deletion attempts, clean
     // them up.
     if (file_util::DirectoryExists(db_dir_)) {
-      file_util::FileEnumerator directories(
+      base::FileEnumerator directories(
           db_dir_,
           false,
-          file_util::FileEnumerator::DIRECTORIES,
+          base::FileEnumerator::DIRECTORIES,
           kTemporaryDirectoryPattern);
       for (base::FilePath directory = directories.Next(); !directory.empty();
            directory = directories.Next()) {
         file_util::Delete(directory, true);
       }
     }
 
     // If the tracker database exists, but it's corrupt or doesn't
     // have a meta table, delete the database directory.
     const base::FilePath kTrackerDatabaseFullPath =
@@ skipping 395 matching lines @@
   if (!db_tracker_thread_->BelongsToCurrentThread()) {
     db_tracker_thread_->PostTask(
         FROM_HERE,
         base::Bind(&DatabaseTracker::SetForceKeepSessionState, this));
     return;
   }
   force_keep_session_state_ = true;
 }
 
 }  // namespace webkit_database