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Jinwoo Hong
f2ac9f29b2
* fix(browser): let pixel capture hold its own page drawn, without the desktop window Screenshots were the last browser commands that still borrowed the desktop window: they took the per-page automation-visibility lease, which waits for two desktop-window animation frames (capped at 2 s) and never arrives when the window is minimized or throttled. Only pixel capture actually needs a page drawn — input, scripts, layout, the accessibility tree and PDF all work on a hidden page. Capture now takes a main-owned paint hold: a synchronous, per-page ref-count that tells the renderer one way (no reply awaited) to keep the page drawn and keeps the desktop renderer unthrottled while held. Both Orca's full-page capture and the agent-browser helper's screenshots take it in cdp-screenshot.ts and retry on a bounded schedule until the page answers with a frame; a CDP error fails fast. Deleted: the queue's needsPaint lease, the executeJavaScript acquire path and its two racing 2 s timeouts and late-token cleanup, the renderer's rAF wait and window bridge, the capture commands' own leases, the fixed 300/500 ms settle waits, and the global one-screenshot-at-a-time lock. Rebased onto main after #22528 landed; content identical to the reviewed branch head 7b390ed6a8. * fix(browser): probe for a frame instead of repeating the full capture Retrying a capture resent the caller's full request, so on an already drawn tall page (a full-page capture takes ~0.5 s) the 250 ms retry started a second full beyond-viewport capture while the first was still running. Measured on Electron 43: any later request makes a held page produce a frame, and that frame answers every pending capture with a full, correct image. So the capture is sent once and 1x1 probes follow until it answers; their results are ignored. Also report a detached debugger as detached rather than destroyed, and give the layout-metrics timeout its own "did not respond" message, since that request doesn't need a drawn page.