https://chromium-review.googlesource.com/c/chromium/src/+/632656 should fix this.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e97d4cfc98db146faef458af9df69ea86efd49a2

commit e97d4cfc98db146faef458af9df69ea86efd49a2
Author: David Reveman <reveman@chromium.org>
Date: Thu Aug 24 18:47:05 2017

Change Picture: Fix OOBE photo capture.

While making the UI revert to default profile picture when discarding
last photo/file we accidentally broke photo taking from OOBE screen.
That was because we had code that relied on being able to pass
undefined imageIndex to setOldImageUrl and not have it default to 0
and select default image.

This removes the default value for imageIndex in setOldImageUrl and
instead makes the photo discard code that used this pass
CrPicture.kDefaultImageUrl as imageUrl, which will result in the same
behavior while still allowing the photo taking code to use this with
undefined imageIndex and get the behavior it expects.

Bug:  758378 
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I7d5ae32e1daae37ec529771376967e8f89db5fc4
Reviewed-on: https://chromium-review.googlesource.com/632656
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: David Reveman <reveman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#497143}
[modify] https://crrev.com/e97d4cfc98db146faef458af9df69ea86efd49a2/chrome/browser/resources/chromeos/login/oobe_change_picture.js
[modify] https://crrev.com/e97d4cfc98db146faef458af9df69ea86efd49a2/chrome/browser/resources/settings/people_page/change_picture.js
[modify] https://crrev.com/e97d4cfc98db146faef458af9df69ea86efd49a2/ui/webui/resources/cr_elements/chromeos/cr_picture/cr_picture_list.js

This bug requires manual review: We are only 11 days from stable.
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

Approving merge to M61 Chrome OS.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/0e8448cc86230de110492f5e97544f2abb4810fe

commit 0e8448cc86230de110492f5e97544f2abb4810fe
Author: David Reveman <reveman@chromium.org>
Date: Fri Aug 25 08:17:29 2017

Change Picture: Fix OOBE photo capture.

While making the UI revert to default profile picture when discarding
last photo/file we accidentally broke photo taking from OOBE screen.
That was because we had code that relied on being able to pass
undefined imageIndex to setOldImageUrl and not have it default to 0
and select default image.

This removes the default value for imageIndex in setOldImageUrl and
instead makes the photo discard code that used this pass
CrPicture.kDefaultImageUrl as imageUrl, which will result in the same
behavior while still allowing the photo taking code to use this with
undefined imageIndex and get the behavior it expects.

TBR=reveman@chromium.org

(cherry picked from commit e97d4cfc98db146faef458af9df69ea86efd49a2)

Bug:  758378 
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I7d5ae32e1daae37ec529771376967e8f89db5fc4
Reviewed-on: https://chromium-review.googlesource.com/632656
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: David Reveman <reveman@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#497143}
Reviewed-on: https://chromium-review.googlesource.com/634709
Reviewed-by: David Reveman <reveman@chromium.org>
Cr-Commit-Position: refs/branch-heads/3163@{#884}
Cr-Branched-From: ff259bab28b35d242e10186cd63af7ed404fae0d-refs/heads/master@{#488528}
[modify] https://crrev.com/0e8448cc86230de110492f5e97544f2abb4810fe/chrome/browser/resources/chromeos/login/oobe_change_picture.js
[modify] https://crrev.com/0e8448cc86230de110492f5e97544f2abb4810fe/chrome/browser/resources/settings/people_page/change_picture.js
[modify] https://crrev.com/0e8448cc86230de110492f5e97544f2abb4810fe/ui/webui/resources/cr_elements/chromeos/cr_picture/cr_picture_list.js

Verified on M-61 beta build (Chrome OS 9765.50.0, 61.0.3163.72) as well as
M-62 dev build (Chrome OS 9895.0.0, 62.0.3199.0).