Move WriteFile and WriteFileDescriptor from file_util to base namespace.

courgette/third_party/bsdiff_apply.cc

 /*-
  * Copyright 2003,2004 Colin Percival
  * All rights reserved
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted providing that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 182 matching lines @@
   // Set up the new stream and apply the patch.
   SinkStream new_sink_stream;
   BSDiffStatus status = ApplyBinaryPatch(&old_file_stream,
                                          &patch_file_stream,
                                          &new_sink_stream);
   if (status != OK) {
     return status;
   }
 
   // Write the stream to disk.
-  int written = file_util::WriteFile(
+  int written = base::WriteFile(
       new_file_path,
       reinterpret_cast<const char*>(new_sink_stream.Buffer()),
       static_cast<int>(new_sink_stream.Length()));
   if (written != static_cast<int>(new_sink_stream.Length()))
     return WRITE_ERROR;
   return OK;
 }
 
 }  // namespace