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

webkit/browser/fileapi/dump_file_system.cc

 // Copyright (c) 2013 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.
 //
 // A tool to dump HTML5 filesystem from CUI.
 //
 // Usage:
 //
 // ./out/Release/dump_file_system [options] <filesystem dir> [origin]...
 //
@@ skipping 55 matching lines @@
 namespace fileapi {
 
 static void DumpDirectoryTree(const std::string& origin_name,
                               base::FilePath origin_dir) {
   origin_dir = origin_dir.Append(
       ObfuscatedFileUtil::GetDirectoryNameForType(g_opt_fs_type));
 
   printf("=== ORIGIN %s %s ===\n",
          origin_name.c_str(), FilePathToString(origin_dir).c_str());
 
-  if (!file_util::DirectoryExists(origin_dir))
+  if (!base::DirectoryExists(origin_dir))
     return;
 
   SandboxDirectoryDatabase directory_db(origin_dir);
   SandboxDirectoryDatabase::FileId root_id;
   if (!directory_db.GetFileWithPath(StringToFilePath("/"), &root_id))
     return;
 
   std::stack<std::pair<SandboxDirectoryDatabase::FileId,
                        std::string> > paths;
   paths.push(std::make_pair(root_id, ""));
@@ skipping 95 matching lines @@
       argv++;
     } else {
       break;
     }
   }
 
   if (argc < 2)
     ShowUsageAndExit(arg0);
 
   const base::FilePath file_system_dir = fileapi::StringToFilePath(argv[1]);
-  if (!file_util::DirectoryExists(file_system_dir)) {
+  if (!base::DirectoryExists(file_system_dir)) {
     ShowMessageAndExit(fileapi::FilePathToString(file_system_dir) +
                        " is not a filesystem directory");
   }
 
   if (argc == 2) {
     fileapi::DumpFileSystem(file_system_dir);
   } else {
     for (int i = 2; i < argc; i++) {
       fileapi::DumpOrigin(file_system_dir, argv[i]);
     }
   }
   return 0;
 }