[Webkit-unassigned] [Bug 262380] RemoteDisplayListRecorder should lazily allocate a SharedVideoFrameReader

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=262380

--- Comment #1 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
There is some cost here to:

_kernelrpc_mach_port_mod_refs_trap
WTF::MachSendRight::MachSendRight(WTF::MachSendRight const&)
WebKit::SharedVideoFrameReader::SharedVideoFrameReader(WTF::RefPtr<WebKit::RemoteVideoFrameObjectHeap, WTF::RawPtrTraits<WebKit::RemoteVideoFrameObjectHeap>, WTF::DefaultRefDerefTraits<WebKit::RemoteVideoFrameObjectHeap>>&&, WebCore::ProcessIdentity const&, WebKit::SharedVideoFrameReader::UseIOSurfaceBufferPool)
WebKit::RemoteDisplayListRecorder::create(WebCore::ImageBuffer&, WTF::ObjectIdentifierGeneric<WebCore::RenderingResourceIdentifierType, WTF::ObjectIdentifierThreadSafeAccessTraits>, WebKit::RemoteRenderingBackend&)
WebKit::RemoteRenderingBackend::didCreateImageBuffer(WTF::Ref<WebCore::ImageBuffer, WTF::RawPtrTraits<WebCore::ImageBuffer>>)

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