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

chrome/browser/sync/glue/sync_backend_host.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/sync/glue/sync_backend_host.h"
 
 #include <algorithm>
 #include <map>
 
 #include "base/bind.h"
@@ skipping 1376 matching lines @@
 void SyncBackendHost::Core::DoRetryConfiguration(
     const base::Closure& retry_callback) {
   DCHECK_EQ(base::MessageLoop::current(), sync_loop_);
   host_.Call(FROM_HERE,
              &SyncBackendHost::RetryConfigurationOnFrontendLoop,
              retry_callback);
 }
 
 void SyncBackendHost::Core::DeleteSyncDataFolder() {
   DCHECK_EQ(base::MessageLoop::current(), sync_loop_);
-  if (file_util::DirectoryExists(sync_data_folder_path_)) {
+  if (base::DirectoryExists(sync_data_folder_path_)) {
     if (!base::Delete(sync_data_folder_path_, true))
       SLOG(DFATAL) << "Could not delete the Sync Data folder.";
   }
 }
 
 void SyncBackendHost::Core::StartSavingChanges() {
   // We may already be shut down.
   if (!sync_loop_)
     return;
   DCHECK_EQ(base::MessageLoop::current(), sync_loop_);
@@ skipping 219 matching lines @@
   DVLOG(1) << "Connection status changed: "
            << syncer::ConnectionStatusToString(status);
   frontend_->OnConnectionStatusChange(status);
 }
 
 #undef SDVLOG
 
 #undef SLOG
 
 }  // namespace browser_sync