Enable checks for outdated plugins even when third-party plugin installation is not enabled.

Enable checks for outdated plugins even when third-party plugin installation is not enabled.

Even built-in plugins can be outdated, in particular if plugin metadata is updated separately from a Chrome update.

BUG=509832
Committed: https://crrev.com/364aa7f794daadbe497a0ad02621aa1d5a400a49
Cr-Commit-Position: refs/heads/master@{#338869}

[Bernhard Bauer, 2015-07-15 16:33:25]

bauerb@chromium.org changed reviewers:
+ wfh@chromium.org

[Bernhard Bauer, 2015-07-15 16:33:25]

Please review.

[Will Harris, 2015-07-15 16:36:38]

lgtm thanks for doing this

[Bernhard Bauer, 2015-07-15 16:41:18]

The CQ bit was checked by bauerb@chromium.org

[commit-bot: I haz the power, 2015-07-15 16:42:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1234223003/1

[commit-bot: I haz the power, 2015-07-15 17:00:18]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-07-15 17:01:13]

Patchset 1 (id:??) landed as
https://crrev.com/364aa7f794daadbe497a0ad02621aa1d5a400a49
Cr-Commit-Position: refs/heads/master@{#338869}

[Bernhard Bauer, 2015-07-16 09:10:03]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1241693003/ by bauerb@chromium.org.

The reason for reverting is: Crashes when encountering an outdated plugin on
Linux/CrOS (https://crbug.com/510684 and https://crbug.com/510567)..