The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/40d13ba16e12197c608ed31b075f4178585434c4

commit 40d13ba16e12197c608ed31b075f4178585434c4
Author: sebsg <sebsg@chromium.org>
Date: Wed Apr 25 17:18:08 2018

[AF] Add section annotation to the Autofill prediction title.

Bug:  835994 
Change-Id: I817b6ced87513054339397f825f695019cd68a36
Reviewed-on: https://chromium-review.googlesource.com/1025043
Reviewed-by: Emily Stark <estark@chromium.org>
Reviewed-by: Moe Ahmadi <mahmadi@chromium.org>
Commit-Queue: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553620}
[modify] https://crrev.com/40d13ba16e12197c608ed31b075f4178585434c4/components/autofill/content/common/autofill_types.mojom
[modify] https://crrev.com/40d13ba16e12197c608ed31b075f4178585434c4/components/autofill/content/common/autofill_types_struct_traits.cc
[modify] https://crrev.com/40d13ba16e12197c608ed31b075f4178585434c4/components/autofill/content/common/autofill_types_struct_traits.h
[modify] https://crrev.com/40d13ba16e12197c608ed31b075f4178585434c4/components/autofill/content/common/autofill_types_struct_traits_unittest.cc
[modify] https://crrev.com/40d13ba16e12197c608ed31b075f4178585434c4/components/autofill/content/renderer/form_cache.cc
[modify] https://crrev.com/40d13ba16e12197c608ed31b075f4178585434c4/components/autofill/core/browser/form_structure.cc
[modify] https://crrev.com/40d13ba16e12197c608ed31b075f4178585434c4/components/autofill/core/common/form_field_data_predictions.cc
[modify] https://crrev.com/40d13ba16e12197c608ed31b075f4178585434c4/components/autofill/core/common/form_field_data_predictions.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/54ecd00db27f643379da39837abb338bcda98cf1

commit 54ecd00db27f643379da39837abb338bcda98cf1
Author: sebsg <sebsg@chromium.org>
Date: Tue May 01 20:50:14 2018

[AF] Update prediction title max length to reflect latest change.

That data is used to reserve the size of the title string. It was not
updated when I updated the title to add the section name. See bug for
more information.

Bug:  835994 
Change-Id: I94c5f5d7c67325d86a638941b5cfb667b455bcd0
Reviewed-on: https://chromium-review.googlesource.com/1037924
Commit-Queue: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Reviewed-by: Roger McFarlane <rogerm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#555178}
[modify] https://crrev.com/54ecd00db27f643379da39837abb338bcda98cf1/components/autofill/content/renderer/form_cache.cc

sebsg@ Request you to provide the steps to test this issue and verify the fix on the latest Canary 68.0.3417.0.

Thanks..

1. Enable the #show-autofill-type-predictions flag on chrome://flags
2. Navigate to https://rsolomakhin.github.io/autofill
3. Hover over a field, you should see a bunch of information popup like overall type, etc. You should see a section there too.

Thanks