Mac: Blacklist NSCGLSurface on VMWare
Mac: Blacklist NSCGLSurface on VMWare

Despite working around a number of issues, VMWare bots are still hitting
bugs in this path (they report in telemetry screenshot tests that the
screen is white, despite there being content on the screen). These
this path for VMWare to avoid this.

BUG=442859

Review URL: https://codereview.chromium.org/1212433004

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#336255}

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