Move password form finding logic to components.

Bug: 865114
Cq-Include-Trybots: luci.chromium.try:ios-simulator-cronet;luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
Change-Id: Ieee1dc88df8b3c5533b050bda4f71e7b27588df1
Reviewed-on: https://chromium-review.googlesource.com/1170681
Commit-Queue: Scott Wu <scottwu@chromium.org>
Reviewed-by: John Wu <jzw@chromium.org>
Reviewed-by: Hiroshi Ichikawa <ichikawa@chromium.org>
Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#586617}
5 files changed