Move WriteFile and WriteFileDescriptor from file_util to base namespace.

base/json/json_file_value_serializer.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 "base/json/json_file_value_serializer.h"
 
 #include "base/file_util.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/logging.h"
 
@@ skipping 18 matching lines @@
   std::string json_string;
   JSONStringValueSerializer serializer(&json_string);
   serializer.set_pretty_print(true);
   bool result = omit_binary_values ?
       serializer.SerializeAndOmitBinaryValues(root) :
       serializer.Serialize(root);
   if (!result)
     return false;
 
   int data_size = static_cast<int>(json_string.size());
-  if (file_util::WriteFile(json_file_path_,
-                           json_string.data(),
-                           data_size) != data_size)
+  if (base::WriteFile(json_file_path_, json_string.data(), data_size) !=
+      data_size)
     return false;
 
   return true;
 }
 
 int JSONFileValueSerializer::ReadFileToString(std::string* json_string) {
   DCHECK(json_string);
   if (!base::ReadFileToString(json_file_path_, json_string)) {
 #if defined(OS_WIN)
     int error = ::GetLastError();
@@ skipping 38 matching lines @@
       *error_code = error;
     if (error_str)
       *error_str = GetErrorMessageForCode(error);
     return NULL;
   }
 
   JSONStringValueSerializer serializer(json_string);
   serializer.set_allow_trailing_comma(allow_trailing_comma_);
   return serializer.Deserialize(error_code, error_str);
 }