[Webkit-unassigned] [Bug 92611] New: Prohibit having AuthorShadowDOM of input element for a while and have a flag to enable it in Internals.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=92611

           Summary: Prohibit having AuthorShadowDOM of input element for a
                    while and have a flag to enable it in Internals.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: shinyak at chromium.org
            Blocks: 82313


Unfortunately when fixing bugs of replaced elements, a lot of crashes happens in input element.
The primary reason is that the element in input Shadow DOM assumes that when an input element has a renderer, the elements in Shadow DOM also have renderers.
This does not hold currently.

So we woud like to prohibit adding Author Shadow DOM to input again.
Also, we would like to introduce a flag to enable it for testing purpose. When we make input element AuthorShadowDOM-ready, let remove this restriction.

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