[webkit-changes] [WebKit/WebKit] e1b48c: AX: Stop clearing caching info for table components

[Chris Fleizach]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: e1b48c3d6e0d4d087c9d2deb30099f96aa435a8f
      https://github.com/WebKit/WebKit/commit/e1b48c3d6e0d4d087c9d2deb30099f96aa435a8f
  Author: Chris Fleizach <cfleizach at apple.com>
  Date:   2023-05-22 (Mon, 22 May 2023)

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

  Log Message:
  -----------
  AX: Stop clearing caching info for table components
https://bugs.webkit.org/show_bug.cgi?id=257065
rdar://109589379

Reviewed by Andres Gonzalez.

In table cells, we're spending a lot of time recreating isIgnored state because there are mock
objects (like columns) that return children that are also children of other objects.

That runs into a check about verifying the parent object is the same.

Removing the check does not cause any functional difference.

The performance is actually much better without this, which was
a reason it was added: https://bugs.webkit.org/show_bug.cgi?id=171443.

* Source/WebCore/accessibility/AccessibilityObject.cpp:
(WebCore::AccessibilityObject::setIsIgnoredFromParentDataForChild):

Canonical link: https://commits.webkit.org/264340@main