The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a0b9be912bc2e71563d3588075d5266be11cd95a

commit a0b9be912bc2e71563d3588075d5266be11cd95a
Author: Abhishek Bhardwaj <abhishekbh@chromium.org>
Date: Fri Oct 26 03:27:31 2018

arc: Add wake lock based logic to re-suspend after dark resume

This change adds functionality to support lock screen notifications for
Android. The wake lock module now listens to dark resume notifications
from the power manager. It -

1. Starts a timer to check for partial wake locks acquired by Android.

2. After the timer in 1 expires, if no partial wake lock is acquired the
power manager is requested to re-suspend the system. If a partial wake
lock is acquired, then another hard timeout timer is set and also an
observer to wake lock release is set.

3. If wake lock is released, the system is re-suspended immediately.

4. If a wake lock is still acquired but the hard timeout expires then
the system is re-suspended immediately.

5. If the system transitions to a full resume all dark resume related
state and timers are cleared.

BUG= chromium:898297 
TEST=Unit tests and end to end test with Android applications.

Change-Id: I6dbae0c5f63af67637032b62d0c56cae27d08bad
Reviewed-on: https://chromium-review.googlesource.com/c/1297474
Commit-Queue: Abhishek Bhardwaj <abhishekbh@chromium.org>
Reviewed-by: Yusuke Sato <yusukes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#602980}
[modify] https://crrev.com/a0b9be912bc2e71563d3588075d5266be11cd95a/components/arc/BUILD.gn
[modify] https://crrev.com/a0b9be912bc2e71563d3588075d5266be11cd95a/components/arc/wake_lock/arc_wake_lock_bridge.cc
[modify] https://crrev.com/a0b9be912bc2e71563d3588075d5266be11cd95a/components/arc/wake_lock/arc_wake_lock_bridge.h
[modify] https://crrev.com/a0b9be912bc2e71563d3588075d5266be11cd95a/components/arc/wake_lock/arc_wake_lock_bridge_unittest.cc
[add] https://crrev.com/a0b9be912bc2e71563d3588075d5266be11cd95a/components/arc/wake_lock/wake_lock_observer.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c7c5e82b4e2ebc1ef4429b772508ed4231686dd5

commit c7c5e82b4e2ebc1ef4429b772508ed4231686dd5
Author: Lei Zhang <thestig@chromium.org>
Date: Fri Oct 26 05:10:22 2018

Revert "arc: Add wake lock based logic to re-suspend after dark resume"

This reverts commit a0b9be912bc2e71563d3588075d5266be11cd95a.

Reason for revert: Broke linux-chromeos-dbg

https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/linux-chromeos-dbg/8515

Original change's description:
> arc: Add wake lock based logic to re-suspend after dark resume
> 
> This change adds functionality to support lock screen notifications for
> Android. The wake lock module now listens to dark resume notifications
> from the power manager. It -
> 
> 1. Starts a timer to check for partial wake locks acquired by Android.
> 
> 2. After the timer in 1 expires, if no partial wake lock is acquired the
> power manager is requested to re-suspend the system. If a partial wake
> lock is acquired, then another hard timeout timer is set and also an
> observer to wake lock release is set.
> 
> 3. If wake lock is released, the system is re-suspended immediately.
> 
> 4. If a wake lock is still acquired but the hard timeout expires then
> the system is re-suspended immediately.
> 
> 5. If the system transitions to a full resume all dark resume related
> state and timers are cleared.
> 
> BUG= chromium:898297 
> TEST=Unit tests and end to end test with Android applications.
> 
> Change-Id: I6dbae0c5f63af67637032b62d0c56cae27d08bad
> Reviewed-on: https://chromium-review.googlesource.com/c/1297474
> Commit-Queue: Abhishek Bhardwaj <abhishekbh@chromium.org>
> Reviewed-by: Yusuke Sato <yusukes@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#602980}

TBR=derat@chromium.org,yusukes@chromium.org,abhishekbh@chromium.org,ravisadineni@chromium.org

Change-Id: If613721a75cf2341b12310622649dfb17da1308f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug:  chromium:898297 
Reviewed-on: https://chromium-review.googlesource.com/c/1301074
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#602992}
[modify] https://crrev.com/c7c5e82b4e2ebc1ef4429b772508ed4231686dd5/components/arc/BUILD.gn
[modify] https://crrev.com/c7c5e82b4e2ebc1ef4429b772508ed4231686dd5/components/arc/wake_lock/arc_wake_lock_bridge.cc
[modify] https://crrev.com/c7c5e82b4e2ebc1ef4429b772508ed4231686dd5/components/arc/wake_lock/arc_wake_lock_bridge.h
[modify] https://crrev.com/c7c5e82b4e2ebc1ef4429b772508ed4231686dd5/components/arc/wake_lock/arc_wake_lock_bridge_unittest.cc
[delete] https://crrev.com/f8ab889cccedf7c5ba8133a2b9f267cd4a7d3a28/components/arc/wake_lock/wake_lock_observer.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/91b547aa99e67deb71837f92347163f0c76c6799

commit 91b547aa99e67deb71837f92347163f0c76c6799
Author: Abhishek Bhardwaj <abhishekbh@chromium.org>
Date: Sat Oct 27 00:06:39 2018

Reland "arc: Add wake lock based logic to re-suspend after dark resume"

This is a reland of https://crrev.com/c/1297474.

This change adds functionality to support lock screen notifications for
Android. The wake lock module now listens to dark resume notifications
from the power manager. It -

1. Starts a timer to check for partial wake locks acquired by Android.

2. After the timer in 1 expires, if no partial wake lock is acquired the
power manager is requested to re-suspend the system. If a partial wake
lock is acquired, then another hard timeout timer is set and also an
observer to wake lock release is set.

3. If wake lock is released, the system is re-suspended immediately.

4. If a wake lock is still acquired but the hard timeout expires then
the system is re-suspended immediately.

5. If the system transitions to a full resume all dark resume related
state and timers are cleared.

On top of this change -

1. Changes were added to fix linker errors by declaring static constants
in the source file as well.

2. Refactored some functions in the test code.

BUG= chromium:898297 
TEST=Unit tests and end to end test with Android applications.

Change-Id: I573f130fad2ed092d8acb83fb3319614b4ce8e02
Reviewed-on: https://chromium-review.googlesource.com/c/1302866
Reviewed-by: Yusuke Sato <yusukes@chromium.org>
Commit-Queue: Abhishek Bhardwaj <abhishekbh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603264}
[modify] https://crrev.com/91b547aa99e67deb71837f92347163f0c76c6799/components/arc/BUILD.gn
[modify] https://crrev.com/91b547aa99e67deb71837f92347163f0c76c6799/components/arc/wake_lock/arc_wake_lock_bridge.cc
[modify] https://crrev.com/91b547aa99e67deb71837f92347163f0c76c6799/components/arc/wake_lock/arc_wake_lock_bridge.h
[modify] https://crrev.com/91b547aa99e67deb71837f92347163f0c76c6799/components/arc/wake_lock/arc_wake_lock_bridge_unittest.cc
[add] https://crrev.com/91b547aa99e67deb71837f92347163f0c76c6799/components/arc/wake_lock/wake_lock_observer.h