core(render-blocking): use trace engine as the source of truth #15839
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Did you assess the differences between our logic in TabsBlockingFirstPaint and using the blink signal? ref #2065 (comment) |
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I verified that our expectations in dbw smoke test are the same but did not inspect the raw data. |
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Looks like this is working, but we will need to wait for M123 to be stable before we think about shipping this |
adamraine
commented
Apr 10, 2024
| const maybeGetTiming = (ts) => ts === undefined ? undefined : getTiming(ts); | ||
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| const navigationId = timeOriginEvt.args.data?.navigationId; | ||
| if (!navigationId) throw new Error('No navigation ID'); |
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Several old traces don't have this event...so may need to update them or do a workaround
adamraine
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connorjclark
approved these changes
Apr 11, 2024
adamraine
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#2065
https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/5250877
Uses the new
RenderBlockinginsight in the trace engine to find render blocking requests. Also eliminates the need for theTagsBlockingFirstPaintartifact.