[Webkit-unassigned] [Bug 190894] New: InspectorCanvas is not getting cleared properly for OffscreenCanvas

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=190894

            Bug ID: 190894
           Summary: InspectorCanvas is not getting cleared properly for
                    OffscreenCanvas
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: joepeck at webkit.org

InspectorCanvas is not getting cleared properly for OffscreenCanvas

    $ run-webkit-tests http/wpt/offscreen-canvas --release --dump-render-tree --guard-malloc --time-out-ms=10000 --iterations=10 --verbose --exit-after-n-failures=1
    …
    [1/40] http/wpt/offscreen-canvas/getContext-webgl.html passed
    [2/40] http/wpt/offscreen-canvas/offscreencanvas.constructor.html passed
    [3/40] http/wpt/offscreen-canvas/transferToImageBitmap-empty.html passed
    [4/40] http/wpt/offscreen-canvas/transferToImageBitmap-webgl.html failed unexpectedly (DumpRenderTree crashed [pid=10060])
    Exiting early after 1 failures. 4 tests run.

Crash:

    Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
    0 WebCore::InspectorCanvasAgent::clearCanvasData() + 108
    1 WebCore::InspectorInstrumentation::didCommitLoadImpl(WebCore::InstrumentingAgents&, WebCore::Frame&, WebCore::DocumentLoader*) + 217
    2 WebCore::FrameLoader::dispatchDidCommitLoad(std::optional<WebCore::HasInsecureContent>) + 120
    3 WebCore::FrameLoader::receivedFirstData() + 35
    4 WebCore::DocumentLoader::commitData(char const*, unsigned long) + 2274

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