More YVU_420 buffers support.

More YUV_420 buffers support.

This CL adds:
- YVU_420 to the list of native formats supported by
  BrowserGPuMemoryBufferManager.
- YVU_420 to the list of native formats supported by
  ClientNativePixmapFactory.
- GL_RGB_YCRCB_420_CHROMIUM as a valid internal format when creating
  an image.
- A logging statement in exo::Buffer in case an image fails to be
  created.

Additionally, this CL let GbmPixmap::ExportHandle to export buffers
with less fds than planes as discussed in crrev.com/2055483002

BUG=crbug.com/618516
TEST=Manually tested creating a fake YV12 buffer in exo::Display::CreateLinuxDMABufBuffer.
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel

Committed: https://crrev.com/2db83c7ef2e6fd558afb88c3017dc732f369da02
Cr-Commit-Position: refs/heads/master@{#399597}

[Daniele Castagna, 2016-06-11 00:06:18]

Description was changed from

==========
More YUV_420 buffers support.

This CL adds:
- YVU_420 to the list of native formats supported by
  BrowserGPuMemoryBufferManager.
- YVU_420 to the list of native formats supported by
  ClientNativePixmapFactory.
- GL_RGB_YCRCB_420_CHROMIUM as a valid internal format when creating
  an image.
- A logging statement in exo::Buffer in case a image fails to be
  created.

Additionally, this CL let GbmPixmap::ExportHandle to export buffers
with less fds than planes as discussed in crrev.com/2055483002

BUG=crbug.com/618516
TEST=Manually tested creating a fake YV12 buffer in
exo::Display::CreateLinuxDMABufBuffer.
==========

to

==========
More YUV_420 buffers support.

This CL adds:
- YVU_420 to the list of native formats supported by
  BrowserGPuMemoryBufferManager.
- YVU_420 to the list of native formats supported by
  ClientNativePixmapFactory.
- GL_RGB_YCRCB_420_CHROMIUM as a valid internal format when creating
  an image.
- A logging statement in exo::Buffer in case a image fails to be
  created.

Additionally, this CL let GbmPixmap::ExportHandle to export buffers
with less fds than planes as discussed in crrev.com/2055483002

BUG=crbug.com/618516
TEST=Manually tested creating a fake YV12 buffer in
exo::Display::CreateLinuxDMABufBuffer.
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel
==========

[Daniele Castagna, 2016-06-11 00:06:51]

dcastagna@chromium.org changed reviewers:
+ reveman@chromium.org

[reveman, 2016-06-11 00:10:03]

lgtm

[Daniele Castagna, 2016-06-11 00:11:25]

Description was changed from

==========
More YUV_420 buffers support.

This CL adds:
- YVU_420 to the list of native formats supported by
  BrowserGPuMemoryBufferManager.
- YVU_420 to the list of native formats supported by
  ClientNativePixmapFactory.
- GL_RGB_YCRCB_420_CHROMIUM as a valid internal format when creating
  an image.
- A logging statement in exo::Buffer in case a image fails to be
  created.

Additionally, this CL let GbmPixmap::ExportHandle to export buffers
with less fds than planes as discussed in crrev.com/2055483002

BUG=crbug.com/618516
TEST=Manually tested creating a fake YV12 buffer in
exo::Display::CreateLinuxDMABufBuffer.
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel
==========

to

==========
More YUV_420 buffers support.

This CL adds:
- YVU_420 to the list of native formats supported by
  BrowserGPuMemoryBufferManager.
- YVU_420 to the list of native formats supported by
  ClientNativePixmapFactory.
- GL_RGB_YCRCB_420_CHROMIUM as a valid internal format when creating
  an image.
- A logging statement in exo::Buffer in case an image fails to be
  created.

Additionally, this CL let GbmPixmap::ExportHandle to export buffers
with less fds than planes as discussed in crrev.com/2055483002

BUG=crbug.com/618516
TEST=Manually tested creating a fake YV12 buffer in
exo::Display::CreateLinuxDMABufBuffer.
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel
==========

[Daniele Castagna, 2016-06-11 00:11:44]

dcastagna@chromium.org changed reviewers:
+ dnicoara@chromium.org, sievers@chromium.org

[Daniele Castagna, 2016-06-11 00:11:44]

Adding owners:
+dnicoara for ui/ozone/*
+sievers for content/* and gpu/*

[dnicoara, 2016-06-13 13:41:18]

lgtm

https://codereview.chromium.org/2052003006/diff/1/ui/ozone/platform/drm/gpu/g...
File ui/ozone/platform/drm/gpu/gbm_buffer.cc (right):

https://codereview.chromium.org/2052003006/diff/1/ui/ozone/platform/drm/gpu/g...
ui/ozone/platform/drm/gpu/gbm_buffer.cc:167: if (i < buffer_->GetFdCount()) {
nit: Would you mind adding a comment explaining why this is done? It'll be
easier for future readers to understand without going through a chain of
codereviews.

[Daniele Castagna, 2016-06-13 17:07:59]

https://codereview.chromium.org/2052003006/diff/1/ui/ozone/platform/drm/gpu/g...
File ui/ozone/platform/drm/gpu/gbm_buffer.cc (right):

https://codereview.chromium.org/2052003006/diff/1/ui/ozone/platform/drm/gpu/g...
ui/ozone/platform/drm/gpu/gbm_buffer.cc:167: if (i < buffer_->GetFdCount()) {
On 2016/06/13 at 13:41:17, dnicoara wrote:
> nit: Would you mind adding a comment explaining why this is done? It'll be
easier for future readers to understand without going through a chain of
codereviews.

Done.

[no sievers, 2016-06-13 18:12:46]

lgtm

[Daniele Castagna, 2016-06-13 18:21:47]

The CQ bit was checked by dcastagna@chromium.org

[Daniele Castagna, 2016-06-13 18:21:48]

The patchset sent to the CQ was uploaded after l-g-t-m from
dnicoara@chromium.org, reveman@chromium.org
Link to the patchset: https://codereview.chromium.org/2052003006/#ps20001
(title: "Address dnicoara's comment.")

[commit-bot: I haz the power, 2016-06-13 18:22:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2052003006/20001

[commit-bot: I haz the power, 2016-06-13 23:33:35]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-06-13 23:33:39]

CQ bit was unchecked

[commit-bot: I haz the power, 2016-06-13 23:34:52]

Description was changed from

==========
More YUV_420 buffers support.

This CL adds:
- YVU_420 to the list of native formats supported by
  BrowserGPuMemoryBufferManager.
- YVU_420 to the list of native formats supported by
  ClientNativePixmapFactory.
- GL_RGB_YCRCB_420_CHROMIUM as a valid internal format when creating
  an image.
- A logging statement in exo::Buffer in case an image fails to be
  created.

Additionally, this CL let GbmPixmap::ExportHandle to export buffers
with less fds than planes as discussed in crrev.com/2055483002

BUG=crbug.com/618516
TEST=Manually tested creating a fake YV12 buffer in
exo::Display::CreateLinuxDMABufBuffer.
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel
==========

to

==========
More YUV_420 buffers support.

This CL adds:
- YVU_420 to the list of native formats supported by
  BrowserGPuMemoryBufferManager.
- YVU_420 to the list of native formats supported by
  ClientNativePixmapFactory.
- GL_RGB_YCRCB_420_CHROMIUM as a valid internal format when creating
  an image.
- A logging statement in exo::Buffer in case an image fails to be
  created.

Additionally, this CL let GbmPixmap::ExportHandle to export buffers
with less fds than planes as discussed in crrev.com/2055483002

BUG=crbug.com/618516
TEST=Manually tested creating a fake YV12 buffer in
exo::Display::CreateLinuxDMABufBuffer.
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel

Committed: https://crrev.com/2db83c7ef2e6fd558afb88c3017dc732f369da02
Cr-Commit-Position: refs/heads/master@{#399597}
==========

[commit-bot: I haz the power, 2016-06-13 23:34:54]

Patchset 2 (id:??) landed as
https://crrev.com/2db83c7ef2e6fd558afb88c3017dc732f369da02
Cr-Commit-Position: refs/heads/master@{#399597}