c9e4522656
video_quality_analysis unittests need to print perf results to a file [1]. Add an option to make this possible. [1] https://webrtc.googlesource.com/src/+/master/rtc_tools/frame_analyzer/video_quality_analysis_unittest.cc#72 R=kwiberg@webrtc.org, oprypin@webrtc.org TBR=phoglund@webrtc.org Bug: chromium:755660 Change-Id: Ife83c4f026cc5a65dd0a430ddc9ff12eb27ae77c Reviewed-on: https://webrtc-review.googlesource.com/43460 Commit-Queue: Edward Lemur <ehmaldonado@webrtc.org> Reviewed-by: Oleh Prypin <oprypin@webrtc.org> Cr-Commit-Position: refs/heads/master@{#21763}