Oystein, is there a way to distinguish if tracing is initialized by Chrome as the controller?

Can I assume the StringTraceDataSink and CompressedStringTraceDataSink in tracing_controller_impl_data_sinks are always used by Chrome as the controller?

Or should I instead set controller_trace_data_key in tracing_ui? That is: https://code.google.com/p/chromium/codesearch#chromium/src/content/browser/tracing/tracing_ui.cc&l=192 (right before calling stop tracing) Does this cover both chrome://tracing and chrome://inspect?tracing?


By the way, I just realized that maybe I should use controllerTraceDataKey instead of controller_trace_data_key?

This is probably not needed on the Chrome side.