mus: Remove unnecessary GpuMemoryBuffer code from client-lib.

mus: Remove unnecessary GpuMemoryBuffer code from client-lib.

The gfx::GpuMemoryBuffer implementations in the mus client lib
do not do the right thing, and are not really necessary. Remove
the code, and instead use the same implementation in gpu-client
that content uses.

The code is still not right: instead of getting memory buffer
from the host, the code allocates shared memory on the client
side. When returning memory, the code ignores the sync token.
These issues will be fixed in future CLs.

BUG=643746
Committed: https://crrev.com/537e5ca6e3115aace06a3573aaa29b33345363c5
Cr-Commit-Position: refs/heads/master@{#430335}

[sadrul, 2016-11-05 04:38:44]

The CQ bit was checked by sadrul@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-05 04:38:50]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[sadrul, 2016-11-05 04:56:21]

The CQ bit was checked by sadrul@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-05 04:56:38]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-05 05:54:14]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-11-05 05:54:15]

Dry run: This issue passed the CQ dry run.

[sadrul, 2016-11-05 07:01:18]

The CQ bit was checked by sadrul@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-05 07:01:26]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[sadrul, 2016-11-05 07:09:51]

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

[commit-bot: I haz the power, 2016-11-05 07:59:29]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-11-05 07:59:30]

Dry run: This issue passed the CQ dry run.

[reveman, 2016-11-05 19:49:40]

lgtm

[sadrul, 2016-11-05 23:14:59]

sadrul@chromium.org changed reviewers:
+ sky@chromium.org

[sadrul, 2016-11-05 23:15:00]

+sky for owner review.

/cc +piman FYI

[sky, 2016-11-07 16:39:39]

LGTM

[sadrul, 2016-11-07 17:42:03]

The CQ bit was checked by sadrul@chromium.org

[commit-bot: I haz the power, 2016-11-07 17:42:41]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-07 19:04:22]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-11-07 19:15:36]

Description was changed from

==========
mus: Remove unnecessary GpuMemoryBuffer code from client-lib.

The gfx::GpuMemoryBuffer implementations in the mus client lib
do not do the right thing, and are not really necessary. Remove
the code, and instead use the same implementation in gpu-client
that content uses.

The code is still not right: instead of getting memory buffer
from the host, the code allocates shared memory on the client
side. When returning memory, the code ignores the sync token.
These issues will be fixed in future CLs.

BUG=643746
==========

to

==========
mus: Remove unnecessary GpuMemoryBuffer code from client-lib.

The gfx::GpuMemoryBuffer implementations in the mus client lib
do not do the right thing, and are not really necessary. Remove
the code, and instead use the same implementation in gpu-client
that content uses.

The code is still not right: instead of getting memory buffer
from the host, the code allocates shared memory on the client
side. When returning memory, the code ignores the sync token.
These issues will be fixed in future CLs.

BUG=643746

Committed: https://crrev.com/537e5ca6e3115aace06a3573aaa29b33345363c5
Cr-Commit-Position: refs/heads/master@{#430335}
==========

[commit-bot: I haz the power, 2016-11-07 19:15:37]

Patchset 3 (id:??) landed as
https://crrev.com/537e5ca6e3115aace06a3573aaa29b33345363c5
Cr-Commit-Position: refs/heads/master@{#430335}