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

webkit/browser/fileapi/obfuscated_file_util_unittest.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 <set>
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/file_util.h"
@@ skipping 19 matching lines @@
 #include "webkit/browser/fileapi/test_file_set.h"
 #include "webkit/browser/quota/mock_special_storage_policy.h"
 #include "webkit/browser/quota/quota_manager.h"
 #include "webkit/common/quota/quota_types.h"
 
 namespace fileapi {
 
 namespace {
 
 bool FileExists(const base::FilePath& path) {
-  return base::PathExists(path) && !file_util::DirectoryExists(path);
+  return base::PathExists(path) && !base::DirectoryExists(path);
 }
 
 int64 GetSize(const base::FilePath& path) {
   int64 size;
   EXPECT_TRUE(file_util::GetFileSize(path, &size));
   return size;
 }
 
 // After a move, the dest exists and the source doesn't.
 // After a copy, both source and dest exist.
@@ skipping 2270 matching lines @@
   // Remove isolated.
   storage_policy_->RemoveIsolated(origin_);
 
   // This should still get the same database.
   SandboxDirectoryDatabase* db2 = file_util.GetDirectoryDatabase(
       origin_, kFileSystemTypePersistent, false /* create */);
   ASSERT_EQ(db, db2);
 }
 
 }  // namespace fileapi