Move FileEnumerator to its own file, do some refactoring.

content/browser/indexed_db/indexed_db_context_impl.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 "content/browser/indexed_db/indexed_db_context_impl.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
+#include "base/files/file_enumerator.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/indexed_db/indexed_db_quota_client.h"
 #include "content/browser/indexed_db/webidbfactory_impl.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/indexed_db_info.h"
 #include "content/public/common/content_switches.h"
 #include "third_party/WebKit/public/platform/WebCString.h"
@@ skipping 18 matching lines @@
     FILE_PATH_LITERAL(".leveldb");
 
 namespace {
 
 void GetAllOriginsAndPaths(const base::FilePath& indexeddb_path,
                            std::vector<GURL>* origins,
                            std::vector<base::FilePath>* file_paths) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT_DEPRECATED));
   if (indexeddb_path.empty())
     return;
-  file_util::FileEnumerator file_enumerator(
-      indexeddb_path, false, file_util::FileEnumerator::DIRECTORIES);
+  base::FileEnumerator file_enumerator(
+      indexeddb_path, false, base::FileEnumerator::DIRECTORIES);
   for (base::FilePath file_path = file_enumerator.Next(); !file_path.empty();
        file_path = file_enumerator.Next()) {
     if (file_path.Extension() == IndexedDBContextImpl::kIndexedDBExtension) {
       WebKit::WebString origin_id_webstring =
           webkit_base::FilePathToWebString(file_path.BaseName());
       origins->push_back(
           webkit_base::GetOriginURLFromIdentifier(origin_id_webstring));
       if (file_paths)
         file_paths->push_back(file_path);
     }
@@ skipping 345 matching lines @@
   return origin_set_.get();
 }
 
 void IndexedDBContextImpl::ResetCaches() {
   origin_set_.reset();
   origin_size_map_.clear();
   space_available_map_.clear();
 }
 
 }  // namespace content