[2D Canvas] Send GPU resources into hibernation when page is not visible

[2D Canvas] Send GPU resources into hibernation when page is not visible

This change adds the notion of a hibernation state to
Canvas2DLayerBridge. The idea is to read back GPU buffers
into RAM in order to free-up GPU memory for foreground tasks.
The switch to hibernation happens in a idle task, to avoid
interfering with tab switching and navigation event
performance.

BUG=567161
Committed: https://crrev.com/8b5cfe1703c16019566f00190dfd8c972af25c11
Cr-Commit-Position: refs/heads/master@{#364705}

[Justin Novosad, 2015-12-09 21:57:29]

junov@chromium.org changed reviewers:
+ senorblanco@google.com

[Justin Novosad, 2015-12-09 21:57:29]

PTAL

[Justin Novosad, 2015-12-09 21:58:21]

junov@chromium.org changed reviewers:
+ rkaplow@chromium.org, senorblanco@chromium.org
- senorblanco@google.com

[Justin Novosad, 2015-12-09 21:58:21]

+rkaplow for histograms owner

[Stephen White, 2015-12-10 16:13:10]

LGTM w/nits

https://codereview.chromium.org/1507863005/diff/40001/third_party/WebKit/Sour...
File third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp
(right):

https://codereview.chromium.org/1507863005/diff/40001/third_party/WebKit/Sour...
third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp:232: //
exactly one faillure or exit event.
Nit: s/faillure/failure/

https://codereview.chromium.org/1507863005/diff/40001/third_party/WebKit/Sour...
third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp:252: return
nullptr; // recreation will happen through restore()
s/recreation/re-creation/ :)

https://codereview.chromium.org/1507863005/diff/40001/third_party/WebKit/Sour...
third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp:254: bool
wantAccelerated = shouldAccelerate(hint);
naming uNit: wantAccelerated is awkward. wantAcceleration? useAcceleration?
accelerate?

[rkaplow, 2015-12-10 20:56:50]

lgtm

histograms lgtm

[Justin Novosad, 2015-12-10 21:46:32]

Description was changed from

==========
[2D Canvas] Send GPU resources into hibernation when page is not visible

This change add the noting of a hibernation state to
Canvas2DLayerBridge. The idea is to readback GPU buffer
into RAM in order to free-up GPU memory for foreground tasks.
The switch to hibernation happen in a idle task, to avoid
interfering with tab switching and navigation event
performance

BUG=567161
==========

to

==========
[2D Canvas] Send GPU resources into hibernation when page is not visible

This change adds the notion of a hibernation state to
Canvas2DLayerBridge. The idea is to readback GPU buffer
into RAM in order to free-up GPU memory for foreground tasks.
The switch to hibernation happen in a idle task, to avoid
interfering with tab switching and navigation event
performance

BUG=567161
==========

[Justin Novosad, 2015-12-10 21:47:26]

Description was changed from

==========
[2D Canvas] Send GPU resources into hibernation when page is not visible

This change adds the notion of a hibernation state to
Canvas2DLayerBridge. The idea is to readback GPU buffer
into RAM in order to free-up GPU memory for foreground tasks.
The switch to hibernation happen in a idle task, to avoid
interfering with tab switching and navigation event
performance

BUG=567161
==========

to

==========
[2D Canvas] Send GPU resources into hibernation when page is not visible

This change adds the notion of a hibernation state to
Canvas2DLayerBridge. The idea is to read back GPU buffers
into RAM in order to free-up GPU memory for foreground tasks.
The switch to hibernation happens in a idle task, to avoid
interfering with tab switching and navigation event
performance.

BUG=567161
==========

[Justin Novosad, 2015-12-10 22:11:34]

The CQ bit was checked by junov@chromium.org

[Justin Novosad, 2015-12-10 22:11:35]

The patchset sent to the CQ was uploaded after l-g-t-m from
senorblanco@chromium.org, rkaplow@chromium.org
Link to the patchset: https://codereview.chromium.org/1507863005/#ps60001
(title: "nits")

[commit-bot: I haz the power, 2015-12-10 22:12:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1507863005/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1507863005/60001

[commit-bot: I haz the power, 2015-12-10 22:18:08]

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

[commit-bot: I haz the power, 2015-12-10 22:18:09]

Try jobs failed on following builders:
  cast_shell_linux on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/cast_shell_linu...)
  chromeos_daisy_chromium_compile_only_ng on tryserver.chromium.linux
(JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromeos_daisy_...)
  linux_chromium_chromeos_ozone_rel_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  linux_chromium_chromeos_rel_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  linux_chromium_compile_dbg_32_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  linux_chromium_compile_dbg_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  mac_chromium_compile_dbg_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_comp...)
  mac_chromium_gn_rel on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_gn_r...)
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)
  win_chromium_compile_dbg_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_comp...)

[Justin Novosad, 2015-12-11 04:26:36]

The CQ bit was checked by junov@chromium.org

[Justin Novosad, 2015-12-11 04:26:37]

The patchset sent to the CQ was uploaded after l-g-t-m from
senorblanco@chromium.org, rkaplow@chromium.org
Link to the patchset: https://codereview.chromium.org/1507863005/#ps80001
(title: "resolved merge")

[commit-bot: I haz the power, 2015-12-11 04:26:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1507863005/80001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1507863005/80001

[commit-bot: I haz the power, 2015-12-11 05:27:38]

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

[commit-bot: I haz the power, 2015-12-11 05:27:39]

Try jobs failed on following builders:
  linux_chromium_rel_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  win_chromium_rel_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[Justin Novosad, 2015-12-11 13:39:03]

The CQ bit was checked by junov@chromium.org

[Justin Novosad, 2015-12-11 13:39:03]

The patchset sent to the CQ was uploaded after l-g-t-m from
senorblanco@chromium.org, rkaplow@chromium.org
Link to the patchset: https://codereview.chromium.org/1507863005/#ps100001
(title: "fix tests")

[commit-bot: I haz the power, 2015-12-11 13:39:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1507863005/100001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1507863005/100001

[commit-bot: I haz the power, 2015-12-11 15:23:29]

Description was changed from

==========
[2D Canvas] Send GPU resources into hibernation when page is not visible

This change adds the notion of a hibernation state to
Canvas2DLayerBridge. The idea is to read back GPU buffers
into RAM in order to free-up GPU memory for foreground tasks.
The switch to hibernation happens in a idle task, to avoid
interfering with tab switching and navigation event
performance.

BUG=567161
==========

to

==========
[2D Canvas] Send GPU resources into hibernation when page is not visible

This change adds the notion of a hibernation state to
Canvas2DLayerBridge. The idea is to read back GPU buffers
into RAM in order to free-up GPU memory for foreground tasks.
The switch to hibernation happens in a idle task, to avoid
interfering with tab switching and navigation event
performance.

BUG=567161
==========

[commit-bot: I haz the power, 2015-12-11 15:23:30]

Committed patchset #6 (id:100001)

[commit-bot: I haz the power, 2015-12-11 15:24:20]

Description was changed from

==========
[2D Canvas] Send GPU resources into hibernation when page is not visible

This change adds the notion of a hibernation state to
Canvas2DLayerBridge. The idea is to read back GPU buffers
into RAM in order to free-up GPU memory for foreground tasks.
The switch to hibernation happens in a idle task, to avoid
interfering with tab switching and navigation event
performance.

BUG=567161
==========

to

==========
[2D Canvas] Send GPU resources into hibernation when page is not visible

This change adds the notion of a hibernation state to
Canvas2DLayerBridge. The idea is to read back GPU buffers
into RAM in order to free-up GPU memory for foreground tasks.
The switch to hibernation happens in a idle task, to avoid
interfering with tab switching and navigation event
performance.

BUG=567161

Committed: https://crrev.com/8b5cfe1703c16019566f00190dfd8c972af25c11
Cr-Commit-Position: refs/heads/master@{#364705}
==========

[commit-bot: I haz the power, 2015-12-11 15:24:20]

Patchset 6 (id:??) landed as
https://crrev.com/8b5cfe1703c16019566f00190dfd8c972af25c11
Cr-Commit-Position: refs/heads/master@{#364705}