[webkit-changes] [WebKit/WebKit] 3fb91e: [UI-side compositing] Fix for assert in scrollbar ...

[Nikos Mouchtaris]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 3fb91e2c59ba4db706f2ace5cf12bc71b3db9ddd
      https://github.com/WebKit/WebKit/commit/3fb91e2c59ba4db706f2ace5cf12bc71b3db9ddd
  Author: Nikolaos Mouchtaris <nmouchtaris at apple.com>
  Date:   2023-03-29 (Wed, 29 Mar 2023)

  Changed paths:
    M Source/WebCore/page/scrolling/mac/ScrollerMac.h
    M Source/WebCore/page/scrolling/mac/ScrollerMac.mm

  Log Message:
  -----------
  [UI-side compositing] Fix for assert in scrollbar tests: scrollerImp == scroller->scrollerImp()
https://bugs.webkit.org/show_bug.cgi?id=254678
rdar://107380404

Reviewed by Simon Fraser.

We need to update the ScrollerPairMac for the new NSScrollerImps created
in ScrollerMac::updateScrollbarStyle.

* Source/WebCore/page/scrolling/mac/ScrollerMac.h:
* Source/WebCore/page/scrolling/mac/ScrollerMac.mm:
(WebCore::ScrollerMac::setHostLayer):
(WebCore::ScrollerMac::updateScrollbarStyle):
(WebCore::ScrollerMac::updatePairScrollerImps):

Canonical link: https://commits.webkit.org/262301@main