[Webkit-unassigned] [Bug 276498] New: [iOS] Update GPU sandbox to match macOS behavior

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=276498

            Bug ID: 276498
           Summary: [iOS] Update GPU sandbox to match macOS behavior
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bfulgham at webkit.org
                CC: kkinnunen at apple.com

The iOS GPU sandbox denies access to a few sysctl calls that are allowed on macOS, and (more importantly) are allowed in the iOS WebContent process. These are showing up in telemetry when performing media and other web page loads, and are likely to be impacting performance.

We should allow these sysctl-read calls, as well as a MIG routine needed for proper memory attribution.

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