gpu: Remove unused GpuChildThread::gpu_preferences_.

gpu: Remove unused GpuChildThread::gpu_preferences_.

GpuChildThread itself never uses |gpu_preferences_|. However,
GpuChannelManager holds a reference to it. So remove it from
GpuChildThread, and have GpuChannelManager, which actually uses
it, own it instead.

BUG=none
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

Committed: https://crrev.com/3f8d0fabf3859746b38c19a7c36c0ffc73aea6a4
Cr-Commit-Position: refs/heads/master@{#417331}

[sadrul, 2016-09-08 06:33:32]

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

[commit-bot: I haz the power, 2016-09-08 06:33:46]

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, 2016-09-08 07:09:43]

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

[commit-bot: I haz the power, 2016-09-08 07:09:44]

Dry run: Try jobs failed on following builders:
  linux_chromium_chromeos_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[sadrul, 2016-09-08 12:13:43]

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

[commit-bot: I haz the power, 2016-09-08 12:13:56]

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, 2016-09-08 12:49:38]

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

[commit-bot: I haz the power, 2016-09-08 12:49:39]

Dry run: Try jobs failed on following builders:
  linux_chromium_chromeos_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[sadrul, 2016-09-08 16:32:24]

Description was changed from

==========
gpu: Remove unused GpuChildThread::gpu_preferences_.

BUG=none
==========

to

==========
gpu: Remove unused GpuChildThread::gpu_preferences_.

BUG=none
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
==========

[sadrul, 2016-09-08 16:33:30]

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

[commit-bot: I haz the power, 2016-09-08 16:33:51]

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

[sadrul, 2016-09-08 16:47:06]

Description was changed from

==========
gpu: Remove unused GpuChildThread::gpu_preferences_.

BUG=none
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
==========

to

==========
gpu: Remove unused GpuChildThread::gpu_preferences_.

GpuChildThread itself never uses |gpu_preferences_|. However,
GpuChannelManager holds a reference to it. So remove it from
GpuChildThread, and have GpuChannelManager, which actually uses
it, own it instead.

BUG=none
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
==========

[sadrul, 2016-09-08 16:47:36]

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

[piman, 2016-09-08 16:57:56]

LGTM, thanks for the cleanup!

[sadrul, 2016-09-08 17:41:56]

The CQ bit was checked by sadrul@chromium.org

[commit-bot: I haz the power, 2016-09-08 17:42:13]

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, 2016-09-08 17:47:57]

Description was changed from

==========
gpu: Remove unused GpuChildThread::gpu_preferences_.

GpuChildThread itself never uses |gpu_preferences_|. However,
GpuChannelManager holds a reference to it. So remove it from
GpuChildThread, and have GpuChannelManager, which actually uses
it, own it instead.

BUG=none
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
==========

to

==========
gpu: Remove unused GpuChildThread::gpu_preferences_.

GpuChildThread itself never uses |gpu_preferences_|. However,
GpuChannelManager holds a reference to it. So remove it from
GpuChildThread, and have GpuChannelManager, which actually uses
it, own it instead.

BUG=none
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
==========

[commit-bot: I haz the power, 2016-09-08 17:48:00]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-09-08 17:49:56]

Description was changed from

==========
gpu: Remove unused GpuChildThread::gpu_preferences_.

GpuChildThread itself never uses |gpu_preferences_|. However,
GpuChannelManager holds a reference to it. So remove it from
GpuChildThread, and have GpuChannelManager, which actually uses
it, own it instead.

BUG=none
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
==========

to

==========
gpu: Remove unused GpuChildThread::gpu_preferences_.

GpuChildThread itself never uses |gpu_preferences_|. However,
GpuChannelManager holds a reference to it. So remove it from
GpuChildThread, and have GpuChannelManager, which actually uses
it, own it instead.

BUG=none
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

Committed: https://crrev.com/3f8d0fabf3859746b38c19a7c36c0ffc73aea6a4
Cr-Commit-Position: refs/heads/master@{#417331}
==========

[commit-bot: I haz the power, 2016-09-08 17:49:57]

Patchset 2 (id:??) landed as
https://crrev.com/3f8d0fabf3859746b38c19a7c36c0ffc73aea6a4
Cr-Commit-Position: refs/heads/master@{#417331}