The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5c5020fdfc05622997bd51495d804c41a884a07a

commit 5c5020fdfc05622997bd51495d804c41a884a07a
Author: Javier Ernesto Flores Robles <javierrobles@chromium.org>
Date: Mon Nov 19 17:35:49 2018

[iOS][MF] Disable accessory view animation

Disabling the manual fill accessory animation until the suggestion
animation is done. Animating the suggestions disappearing is hard and
it looks better with no animations than with one animation in one part
and no animation in the other.

Bug:  845472 ,  905660 ,  905651 
Change-Id: Ic0d9de58a85b0e5366105102f0bf3706e5ce42ba
Reviewed-on: https://chromium-review.googlesource.com/c/1341995
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Commit-Queue: Javier Ernesto Flores Robles <javierrobles@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609348}
[modify] https://crrev.com/5c5020fdfc05622997bd51495d804c41a884a07a/ios/chrome/browser/ui/autofill/manual_fill/manual_fill_accessory_view_controller.mm

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/dbd360b334ef36a9d178738814f2ec52e4c9e52a

commit dbd360b334ef36a9d178738814f2ec52e4c9e52a
Author: Javier Ernesto Flores Robles <javierrobles@chromium.org>
Date: Fri Nov 23 15:23:17 2018

[iOS][MF] Animate suggestions out and in

In order to add the animations some refactoring was required.
This also updates the suggestions view and form accessory view instead
of recreating them every time new suggestions arrive.
Continues the UI layering of these views, by removing the navigator
related logic from them.
Relies on setting content insets instead of removing suggestions to
lock on the manual fill icons.
Refactors names of delegates and properties to more appropriate ones
Fixes an issue when disabled suggestions was ignored when jumping
between fields.



Bug:  905651 , 907084,  845472 ,  905660 
Change-Id: I4ceebcabadbb26e6d948c26f9691d5684a143b79
Reviewed-on: https://chromium-review.googlesource.com/c/1346833
Commit-Queue: Javier Ernesto Flores Robles <javierrobles@chromium.org>
Reviewed-by: Moe Ahmadi <mahmadi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610611}
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/BUILD.gn
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_input_accessory_consumer.h
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_input_accessory_view.h
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_input_accessory_view.mm
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_input_accessory_view_controller.h
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_input_accessory_view_controller.mm
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_input_accessory_view_handler.h
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_input_accessory_view_handler.mm
[rename] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_input_navigator.h
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_input_suggestions_provider.h
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_suggestion_controller.mm
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_suggestion_controller_unittest.mm
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_suggestion_view.h
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/autofill/form_suggestion_view.mm
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/ui/autofill/form_input_accessory_coordinator.mm
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/ui/autofill/form_input_accessory_mediator.h
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/ui/autofill/form_input_accessory_mediator.mm
[modify] https://crrev.com/dbd360b334ef36a9d178738814f2ec52e4c9e52a/ios/chrome/browser/ui/autofill/manual_fill/manual_fill_accessory_view_controller.mm

Could you please provide more information or screenshots of the issue in order to verify this bug is fixed? -thx

I'm sorry I don't have a video or screenshots for this, but I'll try to describe it.

When opening a full screen from the manual fallback view, i.e. "Use other password", and then returning by touching the "Done" button, the keyboard will appear again, and while that happens, an animation rotating the Manual Fallback icons was also happening.