[Merge to 2840] Expand the list of devices that require a GPU workaround.

[Merge to 2840] Expand the list of devices that require a GPU workaround.

> Old AMD devices are known to require a workaround for colormasks on multisample
> renderbuffers. This CL expands the list of devices known to need this
> workaround.
>
> BUG=648466
> 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/2363833002
> Cr-Commit-Position: refs/heads/master@{#420756}
> (cherry picked from commit e9a527e058e65fcbfc37b817a5ef7e6693fbb209)

Committed: https://chromium.googlesource.com/chromium/src/+/0c26055fb6018dc18d1b4c5b27273dbb52a6c75b

[erikchen, 2016-09-26 17:01:37]

Description was changed from

==========
[Merge to 2840] Expand the list of devices that require a GPU workaround.

> Old AMD devices are known to require a workaround for colormasks on
multisample
> renderbuffers. This CL expands the list of devices known to need this
> workaround.
>
> BUG=648466
>
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/2363833002
> Cr-Commit-Position: refs/heads/master@{#420756}
> (cherry picked from commit e9a527e058e65fcbfc37b817a5ef7e6693fbb209)
==========

to

==========
[Merge to 2840] Expand the list of devices that require a GPU workaround.

> Old AMD devices are known to require a workaround for colormasks on
multisample
> renderbuffers. This CL expands the list of devices known to need this
> workaround.
>
> BUG=648466
>
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/2363833002
> Cr-Commit-Position: refs/heads/master@{#420756}
> (cherry picked from commit e9a527e058e65fcbfc37b817a5ef7e6693fbb209)

Committed:
https://chromium.googlesource.com/chromium/src/+/0c26055fb6018dc18d1b4c5b2727...
==========

[erikchen, 2016-09-26 17:01:39]

Committed patchset #1 (id:1) manually as
0c26055fb6018dc18d1b4c5b27273dbb52a6c75b.