Fix queuing of display power state change requests

Fix queuing of display power state change requests

If a display power change request arrives before the previous one
finishes or if a previous power change request failed the state becomes
inconsistent and future requests are optimized out.

BUG=627795
TEST=New unittest in display_unittests and manually checked on Samus

Committed: https://crrev.com/760bfbf595eb8e4597c971b60c2da1c911481fbd
Cr-Commit-Position: refs/heads/master@{#405990}

[dnicoara, 2016-07-15 17:58:35]

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

[commit-bot: I haz the power, 2016-07-15 17:59:03]

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, 2016-07-15 18:32:46]

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

[commit-bot: I haz the power, 2016-07-15 18:32:46]

Dry run: This issue passed the CQ dry run.

[dnicoara, 2016-07-15 18:46:34]

dnicoara@chromium.org changed reviewers:
+ oshima@chromium.org

[dnicoara, 2016-07-15 18:46:35]

PTAL

[oshima, 2016-07-15 21:56:51]

lgtm wit a nit

https://codereview.chromium.org/2154743003/diff/1/ui/display/chromeos/display...
File ui/display/chromeos/display_configurator.cc (right):

https://codereview.chromium.org/2154743003/diff/1/ui/display/chromeos/display...
ui/display/chromeos/display_configurator.cc:849: // then there is a current taks
pending or the last configuration failed. In
s/taks/task/

[dnicoara, 2016-07-18 13:49:29]

https://codereview.chromium.org/2154743003/diff/1/ui/display/chromeos/display...
File ui/display/chromeos/display_configurator.cc (right):

https://codereview.chromium.org/2154743003/diff/1/ui/display/chromeos/display...
ui/display/chromeos/display_configurator.cc:849: // then there is a current taks
pending or the last configuration failed. In
On 2016/07/15 21:56:50, oshima wrote:
> s/taks/task/

Woops, ... done.

[dnicoara, 2016-07-18 13:49:35]

The CQ bit was checked by dnicoara@chromium.org

[dnicoara, 2016-07-18 13:49:35]

The patchset sent to the CQ was uploaded after l-g-t-m from oshima@chromium.org
Link to the patchset: https://codereview.chromium.org/2154743003/#ps20001
(title: "fix typo")

[commit-bot: I haz the power, 2016-07-18 13:49:52]

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, 2016-07-18 15:04:41]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-07-18 15:06:20]

Description was changed from

==========
Fix queuing of display power state change requests

If a display power change request arrives before the previous one
finishes or if a previous power change request failed the state becomes
inconsistent and future requests are optimized out.

BUG=627795
TEST=New unittest in display_unittests and manually checked on Samus
==========

to

==========
Fix queuing of display power state change requests

If a display power change request arrives before the previous one
finishes or if a previous power change request failed the state becomes
inconsistent and future requests are optimized out.

BUG=627795
TEST=New unittest in display_unittests and manually checked on Samus

Committed: https://crrev.com/760bfbf595eb8e4597c971b60c2da1c911481fbd
Cr-Commit-Position: refs/heads/master@{#405990}
==========

[commit-bot: I haz the power, 2016-07-18 15:06:21]

Patchset 2 (id:??) landed as
https://crrev.com/760bfbf595eb8e4597c971b60c2da1c911481fbd
Cr-Commit-Position: refs/heads/master@{#405990}