Currently, Chrome uses legacy SwiftShader GL as the WebGL fallback when
a hardware GPU isn't usable for the purpuse of rendering WebGL content.
As we're in the process of changing legacy SwiftShader GL to SwANGLE,
this CL adds a new flag which allows using SwANGLE for WebGL only.
To clarify, current switches with legacy SwiftShader GL:
Software GL: --use-gl=swiftshader
Software WebGL only: --use-gl=swiftshader-webgl
With SwANGLE, the new switches will be:
Software GL: --use-gl=angle --use-angle=swiftshader
Software WebGL only: --use-gl=angle --use-angle=swiftshader-webgl
Bug: chromium:1060139
Change-Id: I8d0382ac3a12c1578dfc0e62fc1949a0a9c66bd7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2845229
Commit-Queue: Alexis Hétu <sugoi@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Cr-Commit-Position: refs/heads/master@{#876794}
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