[LFC][IFC] Continuation pre and post block inline boxes should not have both the start and end decorations of the original inline box

[zalan]

<span style="margin-left: 10px;><div></div></span>
the inline box inside the post block should not have left margin.

[zalan]

Created attachment 419467 [details]
Patch

[Antti Koivisto]

Comment on attachment 419467 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=419467&action=review

> Source/WebCore/layout/integration/LayoutIntegrationBoxTree.cpp:88
> +            if (!childRenderer.parent()->isAnonymousBlock())
> +                return makeUnique<Layout::ContainerBox>(Layout::Box::ElementAttributes { Layout::Box::ElementType::GenericElement }, WTFMove(style));

I'd just revert the condition and use the makeUnique at the end in all cases.

[zalan]

Created attachment 419502 [details]
Patch

[EWS]

Committed r272463: <https://commits.webkit.org/r272463>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 419502 [details].

[Radar WebKit Bug Importer]

<rdar://problem/74206895>