Use consistent values for enabled_component_updates throughout an update.

Use consistent values for enabled_component_updates throughout an update.

The upcoming group policy control for the component updates will support
dynamic refresh. That means that the enable/disable state for the
updates, as reported by the Confogurator can change during an update task.

This can lead to inconsistent behavior while running an update task.

To support this dynamic scenario, the update context retains the
enable/disable state of the updates as an immutable value created at
construction time. This value is used throughout an update task and
its dependent update actions.

TBR=waffles@chromium.org

BUG=624128
Committed: https://crrev.com/590921d35fcece61e518705b432bd61f01a17c4b
Cr-Commit-Position: refs/heads/master@{#411450}

[Sorin Jianu, 2016-08-11 19:01:30]

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

[commit-bot: I haz the power, 2016-08-11 19:02:46]

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

[Sorin Jianu, 2016-08-11 19:19:34]

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

[commit-bot: I haz the power, 2016-08-11 19:20:15]

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, 2016-08-11 21:43:07]

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

[commit-bot: I haz the power, 2016-08-11 21:43:08]

Dry run: Try jobs failed on following builders:
  mac_chromium_rel_ng on master.tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[Sorin Jianu, 2016-08-11 21:45:27]

The CQ bit was checked by sorin@chromium.org

[commit-bot: I haz the power, 2016-08-11 21:46:05]

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, 2016-08-11 23:48:54]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-08-11 23:52:26]

Description was changed from

==========
Use consistent values for enabled_component_updates throughout an update.

The upcoming group policy control for the component updates will support
dynamic refresh. That means that the enable/disable state for the
updates, as reported by the Confogurator can change during an update task.

This can lead to inconsistent behavior while running an update task.

To support this dynamic scenario, the update context retains the
enable/disable state of the updates as an immutable value created at
construction time. This value is used throughout an update task and
its dependent update actions.

TBR=waffles@chromium.org

BUG=624128
==========

to

==========
Use consistent values for enabled_component_updates throughout an update.

The upcoming group policy control for the component updates will support
dynamic refresh. That means that the enable/disable state for the
updates, as reported by the Confogurator can change during an update task.

This can lead to inconsistent behavior while running an update task.

To support this dynamic scenario, the update context retains the
enable/disable state of the updates as an immutable value created at
construction time. This value is used throughout an update task and
its dependent update actions.

TBR=waffles@chromium.org

BUG=624128

Committed: https://crrev.com/590921d35fcece61e518705b432bd61f01a17c4b
Cr-Commit-Position: refs/heads/master@{#411450}
==========

[commit-bot: I haz the power, 2016-08-11 23:52:27]

Patchset 2 (id:??) landed as
https://crrev.com/590921d35fcece61e518705b432bd61f01a17c4b
Cr-Commit-Position: refs/heads/master@{#411450}