The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4f6be5b9b99134adb69eb654a6c6e2e6ea167d96

commit 4f6be5b9b99134adb69eb654a6c6e2e6ea167d96
Author: Jérôme Lebel <jlebel@chromium.org>
Date: Wed Aug 09 09:50:43 2017

Implement the sign-in promo in bookmarks as a card

Adding margin for the sign-in promo view and removing separator for the
bookmark view.

iPhone, before:
https://drive.google.com/open?id=0ByXziH_JVCGJaFFQRkNybndCYjg
iPhone, after:
https://drive.google.com/open?id=0ByXziH_JVCGJMV9Dd08yOW5qTWc

iPad, before:
https://drive.google.com/open?id=0ByXziH_JVCGJaThBbGhHVy1JdW8
iPad, after:
https://drive.google.com/open?id=0ByXziH_JVCGJZG14YUlGSnhwZHM

Mock:
https://drive.google.com/corp/drive/u/0/folders/0B3pahfDhxF6yTXNSY0JQaVNIb2M

Bug:  747744 ,  747743 
Change-Id: I9204c68813266c4c83823fb80558cb5abaac3b22
Reviewed-on: https://chromium-review.googlesource.com/581492
Commit-Queue: Jérôme Lebel <jlebel@chromium.org>
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Cr-Commit-Position: refs/heads/master@{#492927}
[modify] https://crrev.com/4f6be5b9b99134adb69eb654a6c6e2e6ea167d96/ios/chrome/browser/ui/bookmarks/bookmark_collection_view.mm
[modify] https://crrev.com/4f6be5b9b99134adb69eb654a6c6e2e6ea167d96/ios/chrome/browser/ui/bookmarks/bookmark_signin_promo_cell.mm

This bug requires manual review: Less than 23 days to go before AppStore submit on M61
Please contact the milestone owner if you have questions.
Owners: amineer@(Android), cmasso@(iOS), ketakid@(ChromeOS), govind@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

please provide rationale as to why this change is required to be merged to the release branch.  Why is it important for M61?  If we don't merge the patch, what bug will the user see?  If we do merge the patch, how risky is it?

Verified on iPhone6 iOS 10.3.3 on build 62.0.3180.0 Canary
https://drive.google.com/a/google.com/file/d/0B6GVWQnhaMClaEVNLUJSQ05xWUU/view?usp=sharing
We still see the old promo in bookmarks screen.

Jerome, we don't need to merge this back to 61. We can let this roll out on the waterfall in 62.

ok

verified the issue in the build 61.0.03163.62 beta tested in iPhone6 and iPad(iOS10)
Sign in promo looks good in bookmarks