Move PathIsWritable, DirectoryExists, ContentsEqual, and TextContentsEqual to the base namespace.

content/browser/download/save_package.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/download/save_package.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/file_util.h"
@@ skipping 1328 matching lines @@
 
 void SavePackage::CreateDirectoryOnFileThread(
     const base::FilePath& website_save_dir,
     const base::FilePath& download_save_dir,
     bool skip_dir_check,
     const std::string& mime_type,
     const std::string& accept_langs) {
   base::FilePath save_dir;
   // If the default html/websites save folder doesn't exist...
   // We skip the directory check for gdata directories on ChromeOS.
-  if (!skip_dir_check && !file_util::DirectoryExists(website_save_dir)) {
+  if (!skip_dir_check && !base::DirectoryExists(website_save_dir)) {
     // If the default download dir doesn't exist, create it.
-    if (!file_util::DirectoryExists(download_save_dir)) {
+    if (!base::DirectoryExists(download_save_dir)) {
       bool res = file_util::CreateDirectory(download_save_dir);
       DCHECK(res);
     }
     save_dir = download_save_dir;
   } else {
     // If it does exist, use the default save dir param.
     save_dir = website_save_dir;
   }
 
   bool can_save_as_complete = CanSaveAsComplete(mime_type);
@@ skipping 84 matching lines @@
 
 void SavePackage::FinalizeDownloadEntry() {
   DCHECK(download_);
   DCHECK(download_manager_);
 
   download_manager_->OnSavePackageSuccessfullyFinished(download_);
   StopObservation();
 }
 
 }  // namespace content