Bug 276452 – REGRESSION (280643@main): [ macOS Sonoma wk2 ] media/video-transformed.html is flaky failing.

• Status: NEW
• Component: Media

[Anfernee Viduya]

media/video-transformed.html is flaky failing. 

HISTORY:
https://results.webkit.org/?suite=layout-tests&test=media%2Fvideo-transformed.html&platform=mac

DIFF:
@@ -18,7 +18,19 @@
         RenderBR {BR} at (210,462) size 0x18
 layer at (12,42) size 206x156
   RenderVideo {VIDEO} at (4,0) size 206x156 [border: (3px solid #FF0000)]
+layer at (15,45) size 200x150
+  RenderBlock (relative positioned) {DIV} at (3,3) size 200x150
+layer at (15,45) size 296x279
+  RenderBlock (positioned) {DIV} at (0,0) size 296x279
 layer at (12,202) size 206x156
   RenderVideo {VIDEO} at (4,160) size 206x156 [border: (3px solid #FF0000)]

DESCRIPTION: 
Ive attached the original bug in see also. For visibility, I opened another specifically addressing mac flaky failure. Ive set test expectations addressing the flaky failure.

[Radar WebKit Bug Importer]

<rdar://problem/131494138>

[Anfernee Viduya]

I was able to bisect the regression at 280643@main using command 

run-webkit-tests --root 280643@main media/video-transformed.html --debug

[Anfernee Viduya]

Pull Request: https://github.com/WebKit/WebKit/pull/30624