Attaching video for reference..

Deleted: actual_scroll.mp4 4.0 MB

	actual_scroll.mp4 4.0 MB View Download

Able to reproduce this on 53.0.2785.14 on Linux Ubuntu 14.04 and works fine on Mac OS 10.11.5 and Windows-7 with the same chrome version.

 Issue 633282  has been merged into this issue.

Anthony - are you looking into this?

yep, this is still a pretty huge bummer

Deleted: 2016-09-28-152657_465x498_scrot.png 44.3 KB

	2016-09-28-152657_465x498_scrot.png 44.3 KB View Download

Anthony, this is labeled as P1 and has been open for a while. Can you please take a look at this as soon as possible, or else lower the priority if you don't think this should be a P1?

I can't repro this at all, so I'll lower it to a P2 since this doesn't break the feature. I'd be interested to know if there are repros on an OS other than Ubuntu.

FWIW, I remember being able to repro this on Ubuntu a couple months ago.

It sounds to me like it's an Ubuntu-specific issue.

I cannot reproduce this anymore on ToT (see attached screenshots). 

ajha@: Can you still reproduce this on the latest canary or dev?

Deleted: signin_noscrollbars 49.6 KB

signin_noscrollbars 49.6 KB View Download

Deleted: version 141 KB

version 141 KB View Download

(Or dbeam, or anyone else who was able to repro this)

This issue is still reproducible in  56.0.2913.0 dev, Ubuntu 14.04

Attaching video of same.

sc00335628@techmahindra.com: May I ask you to attach the video?

Oops! Sorry for missing that..

Deleted: Actual_scrollbars.ogv 923 KB

	Actual_scrollbars.ogv 923 KB View Download

I managed to reproduce this if I change the default values of this modal window:
* I edited the values in https://cs.corp.google.com/clankium/src/chrome/browser/ui/views/profiles/signin_view_controller_delegate_views.cc?rcl=0&l=29
* I set the following values:
const int kModalDialogWidth = 300;
const int kSyncConfirmationDialogHeight = 300;
Then I get both scrollbars.

This basically means that https://cs.corp.google.com/clankium/src/chrome/browser/ui/webui/signin/signin_utils.cc?rcl=0&l=76 does not set a big enough value to get rid of the scrollbars. Increasing the height with 15 extra pixels gets rid of the vertical scrollbar.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/0b510d0aebff97037598a470ff8f10901cc6187b

commit 0b510d0aebff97037598a470ff8f10901cc6187b
Author: msarda <msarda@chromium.org>
Date: Thu Nov 10 17:47:02 2016

Hide scrollbars for the body of the sign-in dialogs.

This CL hides the scrollbars for the body in all sign-in WebUI dialogs
as all sign-in dialogs are resized when the document is loaded.

BUG= 627411 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2484263002
Cr-Commit-Position: refs/heads/master@{#431283}

[modify] https://crrev.com/0b510d0aebff97037598a470ff8f10901cc6187b/chrome/browser/resources/signin/signin_shared_css.html

Mihai, this appears to be happening again (at least for me on my Ubuntu machine) in the latest 57 stable. Can you please look into this?

--Chrome Identity automated triaging--

This bug is Assigned and has gone one month without any activity, so it is being moved to Available to indicate that it is not actively being worked on. If you are working on this bug, please mark yourself as the owner and move back to Assigned. Please see https://goo.gl/78kbny for more details. Please remove the Services>SignIn or UI>Browser>Profiles components if this bug isn't related to Chrome Identity.

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

I'll take a look today. Unfortunately, it looks like the only possible option I can come up with is to increase a bit the dialog on linux as the default values seems to lead to the scrollbars being shown.

--Chrome Identity automated triaging--

This bug is Assigned and has gone one month without any activity, so it is being moved to Available to indicate that it is not actively being worked on. If you are working on this bug, please mark yourself as the owner and move back to Assigned. Please see https://goo.gl/78kbny for more details. Please remove the Services>SignIn or UI>Browser>Profiles components if this bug isn't related to Chrome Identity.

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

Keeping as assigned, this is a simple product excellence thing that we should really try to address.

--Chrome Identity automated triaging--

This bug is Assigned and has gone one month without any activity, so it is being moved to Available to indicate that it is not actively being worked on. If you are working on this bug, please mark yourself as the owner and move back to Assigned. Please see https://goo.gl/78kbny for more details. Please remove the Services>SignIn or UI>Browser>Profiles components if this bug isn't related to Chrome Identity.

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

--Chrome Identity automated triaging--

This bug is Available and has gone one year without any activity. If another month passes without any activity, this bug will be closed out. Please provide an update with the latest status for this bug. Please see https://goo.gl/78kbny for more details. Please remove the Services>SignIn or UI>Browser>Profiles components if this bug isn't related to Chrome Identity.

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

--Chrome Identity automated triaging--

This bug is Assigned and has gone one month without any activity, so it is being moved to Available to indicate that it is not actively being worked on. If you are working on this bug, please mark yourself as the owner and move back to Assigned. Please see https://goo.gl/78kbny for more details. Please remove the Services>SignIn or UI>Browser>Profiles components if this bug isn't related to Chrome Identity.

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

Sign-in triager: Thomas, can you please take a look?

We introduced a new confirmation dialog with Unity, so this should be WAI.