[Webkit-unassigned] [Bug 228576] New: Remove unnecessary GPU mux with high-performance powerPreference and Metal backend

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=228576

            Bug ID: 228576
           Summary: Remove unnecessary GPU mux with high-performance
                    powerPreference and Metal backend
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: kbr at google.com
                CC: dino at apple.com, kbr at google.com, kkinnunen at apple.com
        Depends on: 228298

As seen in Bug 228298, selection of either the low-power or high-performance GPU is working in Safari's Metal backend.

When using Metal, the whole-system, OpenGL-based mux to the discrete GPU is unnecessary. This code should be conditionalized on whether the Metal backend is in use.


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=228298
[Bug 228298] powerPreference may not be working correctly in WebGL's Metal backend
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