WebInspector-Popover uses getCSSCanvasContext which is not supported on all browsers (e.g.: chromium). To make work WebInspector-Popover on other browsers WebInspect getCSSCanvasContext can be replaced by additional "canvas" element.
Pull request: https://github.com/WebKit/WebKit/pull/11098
The fix is taken from: https://github.com/WebPlatformForEmbedded/WPEWebKit/commit/5b11a6cbea4f53371dd6e65f2a131c103384c301
<rdar://problem/106619914>
Committed 261966@main (c5ae28e2dee4): <https://commits.webkit.org/261966@main> Reviewed commits have been landed. Closing PR #11098 and removing active labels.