Move WriteFile and WriteFileDescriptor from file_util to base namespace.

chrome/browser/component_updater/widevine_cdm_component_installer.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.
 
 #include "chrome/browser/component_updater/widevine_cdm_component_installer.h"
 
 #include <string.h>
 
 #include <vector>
 
@@ skipping 325 matching lines @@
   const base::FilePath adapter_install_path =
       GetPlatformDirectory(cdm_install_dir)
           .AppendASCII(kWidevineCdmAdapterFileName);
 
   const std::string chrome_version = chrome::VersionInfo().Version();
   DCHECK(!chrome_version.empty());
   std::string adapter_version;
   if (!base::ReadFileToString(adapter_version_path, &adapter_version) ||
       adapter_version != chrome_version ||
       !base::PathExists(adapter_install_path)) {
-    int bytes_written = file_util::WriteFile(
+    int bytes_written = base::WriteFile(
         adapter_version_path, chrome_version.data(), chrome_version.size());
     if (bytes_written < 0 ||
         static_cast<size_t>(bytes_written) != chrome_version.size()) {
       DLOG(WARNING) << "Failed to write Widevine CDM adapter version file.";
       // Ignore version file writing failure and try to copy the CDM adapter.
     }
 
     base::FilePath adapter_source_path;
     PathService::Get(chrome::FILE_WIDEVINE_CDM_ADAPTER, &adapter_source_path);
     if (!base::CopyFile(adapter_source_path, adapter_install_path)) {
@@ skipping 24 matching lines @@
   DefaultComponentInstaller* installer
       = new DefaultComponentInstaller(traits.Pass());
   installer->Register(cus);
 #else
   return;
 #endif  // defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
 }
 
 }  // namespace component_updater