[Webkit-unassigned] [Bug 122794] New: The HTML parser should lazy attach

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=122794

           Summary: The HTML parser should lazy attach
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: BlinkMergeCandidate
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: koivisto at iki.fi, barraclough at apple.com,
                    benjamin at webkit.org, akling at apple.com


Consider merging https://chromium.googlesource.com/chromium/blink/+/318b658082e57daf411681a088d3b0e725dca07d
or come up with a better fix.

The rebaselines are one of the following:
-empty whitespace text node changes
-changes in anonymous wrapper blocks that don't affect the resulting layout
-existing race conditions that are exposed by lazy attaching. These are the ones we've deemed OK to land.

Some detailed explanations:
-fast/dom/tabindex-defaults.html: FAIL is because of FIXME inside HTMLElement::supportsFocus crbug.com/285335
-svg/custom/getsvgdocument.html: crbug.com/284734

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