[Webkit-unassigned] [Bug 232179] GPU Process sometimes crashes in `RemoteRenderingBackend::didFlush()` when releasing a rendering backend

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=232179

--- Comment #1 from Wenson Hsieh <wenson_hsieh at apple.com> ---
The issue here is that while we're tearing down the stream connection (and running through the remaining IPC stream messages as a result), if one of those stream messages is `RemoteRenderingBackend::didFlush()`, we'll end up trying to send an IPC message (and call into IPC::MessageSender methods) during destruction of RemoteRenderingBackend.

This work needs to happen earlier — probably right after we've torn down the IPC stream connection.

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