Scheduling profiler: Unrecognized event type from Chrome Canary

[bvaughn]

Importing a profile recorded with Chrome Canary (v90) triggers this error check code:

react/packages/react-devtools-scheduling-profiler/src/import-worker/preprocessData.js

Lines 371 to 378 in 6c526c5

	// Unrecognized event
	else {
	throw new InvalidProfileError(
	`Unrecognized event ${JSON.stringify(
	event,
	)}! This is likely a bug in this profiler tool.`,
	);
	}

Here's one such example event:

{
  "args": {},
  "cat": "blink.user_timing",
  "name": "requestStart",
  "ph": "I",
  "pid": 64032,
  "s": "t",
  "tid": 775,
  "ts": 25788659448
}

Looks like there's at least one new type, "I", which I assume will eventually affect Chrome stable (currently v88).