Move Copy* into the base namespace.

chrome/browser/chromeos/drive/file_system/copy_operation.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/chromeos/drive/file_system/copy_operation.h"
 
 #include <string>
 
 #include "base/file_util.h"
 #include "base/task_runner_util.h"
@@ skipping 10 matching lines @@
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
 namespace drive {
 namespace file_system {
 
 namespace {
 
 // Copies a file from |src_file_path| to |dest_file_path| on the local
-// file system using file_util::CopyFile.
+// file system using base::CopyFile.
 // Returns FILE_ERROR_OK on success or FILE_ERROR_FAILED otherwise.
 FileError CopyLocalFileOnBlockingPool(
     const base::FilePath& src_file_path,
     const base::FilePath& dest_file_path) {
-  return file_util::CopyFile(src_file_path, dest_file_path) ?
+  return base::CopyFile(src_file_path, dest_file_path) ?
       FILE_ERROR_OK : FILE_ERROR_FAILED;
 }
 
 // Stores a file to the cache and mark it dirty.
 FileError StoreAndMarkDirty(internal::FileCache* cache,
                             const std::string& resource_id,
                             const std::string& md5,
                             const base::FilePath& local_file_path) {
   FileError error = cache->Store(resource_id, md5, local_file_path,
                                  internal::FileCache::FILE_OPERATION_COPY);
@@ skipping 428 matching lines @@
       canonicalized_resource_id,
       // Drop the document extension, which should not be
       // in the document title.
       // TODO(yoshiki): Remove this code with crbug.com/223304.
       remote_dest_file_path.BaseName().RemoveExtension().value(),
       callback);
 }
 
 }  // namespace file_system
 }  // namespace drive