Frequently causes failures as such:

    [...:ERROR:drawing_buffer.cc(854)] Initialization failed to allocate backbuffer.
    [...:INFO:CONSOLE(197)] "Unable to initialize webgl context.", source:  (197)

Bug: chromium:1112986
Bug: angleproject:4937
Change-Id: I5058f78434c0ac49345fe1167043f2dca759b1b9
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2341350Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>