[Webkit-unassigned] [Bug 257519] New: RemoteGraphicsContextGLProxy::initializeIPC makes a copy of the StreamServerConnection::Handle

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=257519

            Bug ID: 257519
           Summary: RemoteGraphicsContextGLProxy::initializeIPC makes a
                    copy of the StreamServerConnection::Handle
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mattwoodrow at apple.com
                CC: dino at apple.com, kbr at google.com, kkinnunen at apple.com

The GPUConnectionToWebProcess::CreateGraphicsContextGL object's constructor doesn't actually move, so we end up making a copy for the IPC message.

The 'serverConnectionHandle' instance is then still alive, and holding on to a MachSendRight.

waitUntilInitialized can then block (for the 30 second timeout) if the GPUP crashes, since notification of the crash doesn't happen until all send rights are destroyed (including the one on the stack).

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