[ios] add suggest password support in password controller

Hidden behind flag.

Bug: 886583

[ios] Add flag for iOS password generation

Bug: 886583
Change-Id: I008609e2eb4da4c1ea547c5ae7114f30846c67b3
Reviewed-on: https://chromium-review.googlesource.com/c/1373816
Reviewed-by: Mark Cogan <marq@chromium.org>
Reviewed-by: Vadym Doroshenko <dvadym@chromium.org>
Commit-Queue: David Jean <djean@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616669}
4 files changed