include what you use: errno.h in chromecast/

chromecast/base/error_codes.cc

 // Copyright 2015 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 "chromecast/base/error_codes.h"
 
+#include <errno.h>
 #include <fcntl.h>
 
 #include <string>
 
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "chromecast/base/path_utils.h"
 
 namespace chromecast {
@@ skipping 57 matching lines @@
 
   // Remove initial error file if no error.
   if (unlink(error_file_path.c_str()) == 0 || errno == ENOENT)
     return true;
 
   PLOG(ERROR) << "Failed to remove error file";
   return false;
 }
 
 }  // namespace chromecast