5a4eb51a04
Add an option to dump test results to a JSON machine-readable file. The format of the file is described in https://www.chromium.org/developers/the-json-test-results-format. R=kjellander@webrtc.org, pbos@webrtc.org BUG=chromium:325726 Review-Url: https://codereview.webrtc.org/2558543004 Cr-Commit-Position: refs/heads/master@{#15458}