Move FileEnumerator to its own file, do some refactoring.

chrome/browser/ui/webui/feedback_ui.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 "chrome/browser/ui/webui/feedback_ui.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
+#include "base/files/file_enumerator.h"
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "base/prefs/pref_service.h"
 #include "base/string_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 674 matching lines @@
 
 #if defined(OS_CHROMEOS)
 // static
 void FeedbackUI::GetMostRecentScreenshots(
     const base::FilePath& filepath,
     std::vector<std::string>* saved_screenshots,
     size_t max_saved) {
   std::string pattern =
       std::string(ScreenshotSource::kScreenshotPrefix) + "*" +
                   ScreenshotSource::kScreenshotSuffix;
-  file_util::FileEnumerator screenshots(filepath, false,
-                                        file_util::FileEnumerator::FILES,
-                                        pattern);
+  base::FileEnumerator screenshots(filepath, false,
+                                   base::FileEnumerator::FILES, pattern);
   base::FilePath screenshot = screenshots.Next();
 
   std::vector<std::string> screenshot_filepaths;
   while (!screenshot.empty()) {
     screenshot_filepaths.push_back(screenshot.BaseName().value());
     screenshot = screenshots.Next();
   }
 
   size_t sort_size = std::min(max_saved, screenshot_filepaths.size());
   std::partial_sort(screenshot_filepaths.begin(),
                     screenshot_filepaths.begin() + sort_size,
                     screenshot_filepaths.end(),
                     ScreenshotTimestampComp);
   for (size_t i = 0; i < sort_size; ++i)
     saved_screenshots->push_back(
         std::string(ScreenshotSource::kScreenshotUrlRoot) +
         std::string(ScreenshotSource::kScreenshotSaved) +
         screenshot_filepaths[i]);
 }
 #endif