[webkit-changes] [WebKit/WebKit] 4ca991: AX: legend-children-are-visible.html, link-inside-...

[Tyler Wilcock]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 4ca99197e0b771b988a4eae18787678565e4eb92
      https://github.com/WebKit/WebKit/commit/4ca99197e0b771b988a4eae18787678565e4eb92
  Author: Tyler Wilcock <tyler_w at apple.com>
  Date:   2024-02-01 (Thu, 01 Feb 2024)

  Changed paths:
    M Source/WebCore/accessibility/AccessibilityNodeObject.cpp

  Log Message:
  -----------
  AX: legend-children-are-visible.html, link-inside-button-accessible-text.html, and text-alternative-calculation-from-unrendered-table.html crash in ITM due to missing AXObjectCache nullptr checks
https://bugs.webkit.org/show_bug.cgi?id=268552
rdar://problem/122100786

Reviewed by Chris Fleizach.

Add these missing nullptr checks, and improve smart pointer usage in adjacent code.

* Source/WebCore/accessibility/AccessibilityNodeObject.cpp:
(WebCore::AccessibilityNodeObject::radioButtonGroup const):
(WebCore::accessibleNameForNode):

Canonical link: https://commits.webkit.org/273953@main