Mechanical refactoring of the parser and ActionUpdateCheck

This refactors the component updater parser and
the ActionUpdateCheck in preparation for handling
the run action later on.

BUG=687231
Review-Url: https://codereview.chromium.org/2700733002
Cr-Commit-Position: refs/heads/master@{#451087}
Committed: https://chromium.googlesource.com/chromium/src/+/9ef301c52015be2aefde760bc560de502b2b94e1

[Sorin Jianu, 2017-02-16 02:25:45]

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

[commit-bot: I haz the power, 2017-02-16 02:27:19]

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, 2017-02-16 03:54:45]

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

[commit-bot: I haz the power, 2017-02-16 03:54:47]

Dry run: Try jobs failed on following builders:
  android_n5x_swarming_rel on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/android_n5x_...)

[Sorin Jianu, 2017-02-16 17:35:44]

Description was changed from

==========
wip

BUG=
==========

to

==========
This refactors the component updater parser and
the ActionUpdateCheck in preparation for handling
the run action later on.

BUG=687231
==========

[Sorin Jianu, 2017-02-16 17:35:44]

sorin@chromium.org changed reviewers:
+ waffles@chromium.org

[Sorin Jianu, 2017-02-16 17:36:01]

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

[Sorin Jianu, 2017-02-16 17:36:17]

PTAL

[commit-bot: I haz the power, 2017-02-16 17:36:57]

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

[waffles, 2017-02-16 17:51:42]

lgtm

[commit-bot: I haz the power, 2017-02-16 19:37:01]

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

[commit-bot: I haz the power, 2017-02-16 19:37:02]

Dry run: Try jobs failed on following builders:
  win_chromium_x64_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[Sorin Jianu, 2017-02-16 19:37:57]

The CQ bit was checked by sorin@chromium.org

[commit-bot: I haz the power, 2017-02-16 19:38:48]

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, 2017-02-16 20:29:21]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1487273877412930,
"parent_rev": "e80ab729b5fbe7b6ee7cf44551b0412a2e03f51f", "commit_rev":
"9ef301c52015be2aefde760bc560de502b2b94e1"}

[commit-bot: I haz the power, 2017-02-16 20:30:00]

Description was changed from

==========
This refactors the component updater parser and
the ActionUpdateCheck in preparation for handling
the run action later on.

BUG=687231
==========

to

==========
This refactors the component updater parser and
the ActionUpdateCheck in preparation for handling
the run action later on.

BUG=687231

Review-Url: https://codereview.chromium.org/2700733002
Cr-Commit-Position: refs/heads/master@{#451087}
Committed:
https://chromium.googlesource.com/chromium/src/+/9ef301c52015be2aefde760bc560...
==========

[commit-bot: I haz the power, 2017-02-16 20:30:01]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/9ef301c52015be2aefde760bc560...