message: Add rendered_frames metric to DVQA.
  Cr-Commit-Position: refs/heads/master@{#33803}
diff: @@ -927,6 +927,9 @@ void DefaultVideoQualityAnalyzer::ReportResults(
  frame_counters.dropped,
  "count",
  /*important=*/false, ImproveDirection::kSmallerIsBetter);
  + test::PrintResult("rendered_frames", "", test_case_name,
  + frame_counters.rendered, "count", /*important=*/false,
  + ImproveDirection::kBiggerIsBetter);
  ReportResult("max_skipped", test_case_name, stats.skipped_between_rendered,
  "count", ImproveDirection::kSmallerIsBetter);
  ReportResult("target_encode_bitrate", test_case_name,
  