message: Eliminate a temporary std::string in ParsedFailed helper.
  Cr-Commit-Position: refs/heads/main@{#35125}
diff: @@ -415,7 +415,9 @@ static bool ParseFailed(absl::string_view message,
  RTC_LOG(LS_ERROR) << "Failed to parse: \"" << first_line
  << "\". Reason: " << description;
  if (error) {
  - error->line = std::string(first_line);
  + // TODO(bugs.webrtc.org/13220): In C++17, we can use plain assignment, with
  + // a string_view on the right hand side.
  + error->line.assign(first_line.data(), first_line.size());
  error->description = std::move(description);
  }
  return false;
  