UAC and pin confirmation dialogs are not on foreground when updating pin #

UAC and pin confirmation dialogs are not on foreground when updating pin #

In this change we elevate the me2me native messaging host before calling into the daemon controller for the tasks that requires elevation. The daemon controller still depends on the com component for those tasks but the elevation is now done in the me2me native messaging host itself.

In followup CLs I will remove the elevated daemon controller com component and move its implementation to DaemonControllerDelegateWin.

Note that the pin confirmation dialog is removed with this CL. This change has been approved by the chrome security team.

BUG=447246
Committed: https://crrev.com/55c0c16b78bce6d968f1347e22cc404d75db5c82
Cr-Commit-Position: refs/heads/master@{#313545}

[weitao, 2015-01-28 00:16:34]

weitaosu@chromium.org changed reviewers:
+ sergeyu@chromium.org

[weitao, 2015-01-28 00:16:48]

PTAL

[Sergey Ulanov, 2015-01-28 01:12:22]

lgtm

[weitao, 2015-01-28 17:49:31]

The CQ bit was checked by weitaosu@chromium.org

[commit-bot: I haz the power, 2015-01-28 17:50:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/880133003/1

[commit-bot: I haz the power, 2015-01-28 18:41:36]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-28 18:43:07]

Patchset 1 (id:??) landed as
https://crrev.com/55c0c16b78bce6d968f1347e22cc404d75db5c82
Cr-Commit-Position: refs/heads/master@{#313545}