gpu: Enable CMAA for all Braswell, Broadwell and Skylake ChromeOS devices

Extend the GPU workaround exception list to enable CMAA on all Braswell,
Broadwell and Skylake GPUs. Using CMAA in place of MSAA for WebGL gives a
performance benefit.

This patch changes the way the platform filtering is done. Intead of
"device_id", "gl_renderer" is used.

BUG=535198
TEST=Boot cyan and observe that workaround is no longer listed.
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2393323003
Cr-Commit-Position: refs/heads/master@{#424156}
1 file changed