Move password promo dialogs into PendingView.

Makes promotions child views of the promo dialog instead of direct
children of ManagePasswordsBubbleView. This disentangles the three
dialogs from ManagePasswordsBubbleView and is a prerequisite for turning
the PendingView into a proper dialog (containing the promo subdialogs).

Bug: chromium:654115
Change-Id: I621deb6bb28041537aa3b7bfeea7da4dde032997
Reviewed-on: https://chromium-review.googlesource.com/869371
Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Commit-Queue: Peter Boström <pbos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#529824}
4 files changed