[Webkit-unassigned] [Bug 281609] New: Make UnixFileDescriptor noncopyable again

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=281609

            Bug ID: 281609
           Summary: Make UnixFileDescriptor noncopyable again
           Product: WebKit
           Version: Other
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Template Framework
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at redhat.com
                CC: mattwoodrow at apple.com

Make UnixFileDescriptor noncopyable again. Otherwise, it's very difficult to use the class without accidentally duping the file descriptor.

This is a partial revert of 272365 at main. We can manually duplicate the file descriptor in the SharedMemoryHandle copy constructor, since we really do want a copy there.

This un-reverts 261281 at main.

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