[Webkit-unassigned] [Bug 128325] New: MathMLTextElement::childShouldCreateRenderer should return false for the mspace element

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=128325

           Summary: MathMLTextElement::childShouldCreateRenderer should
                    return false for the mspace element
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: MathML
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: fred.wang at free.fr
            Blocks: 124838


I'm extracting this small change from bug 124838.

The mspace element can not have children, so MathMLTextElement::childShouldCreateRenderer should always return false. Currently it renders true for text node. That should not be a problem since RenderMathMLSpace::isChildAllowed returns false, but let's explicitly prevent children on the content side. I'll also add a regression test to ensure that mspace does not have child renderers.

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