So anyhow, I just learned about the perfetto switch, so I won't try and dig up a link to the old way of formatting your traces to work with chrome://tracing, as it sounds completely deprecated. Go use Perfetto if you want a fairly easy way of interacting with trace data. I assume it's at least as good and useful as chrome://tracing.
https://www.chromium.org/developers/how-tos/trace-event-prof...
It looks like though the old catapult code has been officially deprecated, and they're recommending switching over to Perfetto.
https://github.com/google/perfetto
So anyhow, I just learned about the perfetto switch, so I won't try and dig up a link to the old way of formatting your traces to work with chrome://tracing, as it sounds completely deprecated. Go use Perfetto if you want a fairly easy way of interacting with trace data. I assume it's at least as good and useful as chrome://tracing.