[Webkit-unassigned] [Bug 205339] New: [GTK][WPE] OffscreenCanvas worker tests that call drawImage crash in debug builds

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=205339

            Bug ID: 205339
           Summary: [GTK][WPE] OffscreenCanvas worker tests that call
                    drawImage crash in debug builds
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Canvas
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: clord at igalia.com
                CC: dino at apple.com, zimmermann at kde.org

Any test that calls OffscreenCanvasRenderingContext2D.drawImage inside a worker will crash in debug builds for the same reasons as the crashes fixed in bug 203884 (calling copyImage, which calls code that isn't safe to run off the main thread). Again, there's no actual need to go through this code path, so the fix is to just use the shorter path that doesn't involve unnecessarily creating an Image object. Patch almost done.

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