[webkit-changes] [WebKit/WebKit] df20f3: [visionOS] WebGL content is empty in private browsing

[mwyrzykowski]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: df20f33b80c9d4bd369589d14fa4354d5e41d868
      https://github.com/WebKit/WebKit/commit/df20f33b80c9d4bd369589d14fa4354d5e41d868
  Author: Mike Wyrzykowski <mwyrzykowski at apple.com>
  Date:   2023-08-03 (Thu, 03 Aug 2023)

  Changed paths:
    M Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm

  Log Message:
  -----------
  [visionOS] WebGL content is empty in private browsing
https://bugs.webkit.org/show_bug.cgi?id=259780
<radar://113278323>

Reviewed by Dean Jackson.

WebGL is still in the WebContent process on visionOS, so we need
to add a sandbox exception in private browsing so Metal can write
to one if its cache directories.

Similar to the change made for WebXR in 266346 at main

* Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm:
(WebKit::WebProcessPool::platformInitializeWebProcess):

Canonical link: https://commits.webkit.org/266565@main