Was removed in Patch Set 5 of https://codereview.webrtc.org/2252413002 but shouldn't have been, since it's actually required. https://cs.chromium.org/chromium/src/third_party/webrtc/modules/audio_coding/neteq/tools/neteq_quality_test.h?l=17 BUG=webrtc:6228 NOTRY=True Review-Url: https://codereview.webrtc.org/2262173003 Cr-Commit-Position: refs/heads/master@{#13851}