ozone: Remove USE_LINEAR when allocating modeset buffers.

ozone: Remove USE_LINEAR when allocating modeset buffers.

crrev.com/2533163002 changed the way we allocate modeset buffers.
Unfortunately the new use flags introduced a regression that makes it
not possible to pageflip from a modeset buffer to a buffer queue buffer.
This CL restores the old modeset buffer use flags in order to fix the
regression, while we work on a long term solution.

BUG=673026, 680510
TEST=manually tried the step described in the bug and verified it now works.

Review-Url: https://codereview.chromium.org/2568243004
Cr-Commit-Position: refs/heads/master@{#438193}
(cherry picked from commit a17cccbc2dbf0bf2a0df1d98ebbc773491e3e4b4)

Review-Url: https://codereview.chromium.org/2625323003 .
Cr-Commit-Position: refs/branch-heads/2924@{#750}
Cr-Branched-From: 3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}
Committed: https://chromium.googlesource.com/chromium/src/+/7601afb62d79327acdc66f77114bb68023ba9c26

[Daniele Castagna, 2017-01-13 00:15:26]

Description was changed from

==========
ozone: Remove USE_LINEAR when allocating modeset buffers.

crrev.com/2533163002 changed the way we allocate modeset buffers.
Unfortunately the new use flags introduced a regression that makes it
not possible to pageflip from a modeset buffer to a buffer queue buffer.
This CL restores the old modeset buffer use flags in order to fix the
regression, while we work on a long term solution.

BUG=673026,680510
TEST=manually tried the step described in the bug and verified it now works.

Review-Url: https://codereview.chromium.org/2568243004
Cr-Commit-Position: refs/heads/master@{#438193}
(cherry picked from commit a17cccbc2dbf0bf2a0df1d98ebbc773491e3e4b4)
==========

to

==========
ozone: Remove USE_LINEAR when allocating modeset buffers.

crrev.com/2533163002 changed the way we allocate modeset buffers.
Unfortunately the new use flags introduced a regression that makes it
not possible to pageflip from a modeset buffer to a buffer queue buffer.
This CL restores the old modeset buffer use flags in order to fix the
regression, while we work on a long term solution.

BUG=673026,680510
TEST=manually tried the step described in the bug and verified it now works.

Review-Url: https://codereview.chromium.org/2568243004
Cr-Commit-Position: refs/heads/master@{#438193}
(cherry picked from commit a17cccbc2dbf0bf2a0df1d98ebbc773491e3e4b4)

Review-Url: https://codereview.chromium.org/2625323003 .
Cr-Commit-Position: refs/branch-heads/2924@{#750}
Cr-Branched-From:
3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}
Committed:
https://chromium.googlesource.com/chromium/src/+/7601afb62d79327acdc66f77114b...
==========

[Daniele Castagna, 2017-01-13 00:15:27]

Committed patchset #1 (id:1) manually as
7601afb62d79327acdc66f77114bb68023ba9c26.