[webkit-changes] [WebKit/WebKit] 5737b9: REGRESSION(260575 at main): Subtitles do not work whe...

[Jer Noble]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 5737b9fdb0fbf464396be6ab4344a0acaa6ea327
      https://github.com/WebKit/WebKit/commit/5737b9fdb0fbf464396be6ab4344a0acaa6ea327
  Author: Jer Noble <jer.noble at apple.com>
  Date:   2023-03-21 (Tue, 21 Mar 2023)

  Changed paths:
    M Source/WTF/Scripts/Preferences/UnifiedWebPreferences.yaml
    M Source/WebCore/rendering/RenderLayerBacking.cpp

  Log Message:
  -----------
  REGRESSION(260575 at main): Subtitles do not work when playing Apple Event video in full screen
https://bugs.webkit.org/show_bug.cgi?id=254229
rdar://106342886

Reviewed by Per Arne Vollan.

Partially disable (for now) the "no-double-hosting layers from the WebContent Process" feature
by adding a disabled-by-default internal feature flag.

* Source/WTF/Scripts/Preferences/UnifiedWebPreferences.yaml:
* Source/WebCore/rendering/RenderLayerBacking.cpp:
(WebCore::RenderLayerBacking::updateConfiguration):

Canonical link: https://commits.webkit.org/261943@main