Break out the update-pending-password dialog.

Untangles the dialog from ManagePasswordsBubbleView and makes it a
proper standalone dialog using DialogClientView infrastructure for
buttons. This addresses OK/Cancel button ordering per OS.

The dialog is not styled for Harmony apart from button ordering.

Bug: chromium:654115
Change-Id: I0e697a86130645424826e1b6590280eb3f02df84
Reviewed-on: https://chromium-review.googlesource.com/876762
Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Commit-Queue: Peter Boström <pbos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#530928}
4 files changed