Add more inert checks for selection-related functionality

[Tim Nguyen (:ntim)]

https://webkit-search.igalia.com/webkit/source/LayoutTests/imported/w3c/web-platform-tests/inert/inert-node-is-unselectable.tentative.html

[Tim Nguyen (:ntim)]

Created attachment 437020 [details]
Patch

[Tim Nguyen (:ntim)]

Created attachment 437021 [details]
Patch

[Tim Nguyen (:ntim)]

Created attachment 437022 [details]
Patch

[Tim Nguyen (:ntim)]

Created attachment 437036 [details]
Patch

[Antti Koivisto]

Comment on attachment 437036 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=437036&action=review

> Source/WebCore/dom/Position.cpp:945
>  bool Position::nodeIsUserSelectNone(Node* node)
>  {
> -    return node && node->renderer() && node->renderer()->style().userSelect() == UserSelect::None;
> +    if (!node)
> +        return false;
> +    if (node->isInert())
> +        return true;
> +    return node->renderer() && node->renderer()->style().userSelect() == UserSelect::None;
>  }

The name of the function no longer matches what it does ("nodeIsInertOrUserSelectNone"). How about renaming it to something more accurate?

[Tim Nguyen (:ntim)]

Created attachment 437156 [details]
Patch

[EWS]

Committed r281930 (241239@main): <https://commits.webkit.org/241239@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 437156 [details].

[Radar WebKit Bug Importer]

<rdar://problem/82679366>