The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b1e4ef59e0be1d0306e2f9761d5dda84f5c6291f

commit b1e4ef59e0be1d0306e2f9761d5dda84f5c6291f
Author: Christopher Grant <cjgrant@chromium.org>
Date: Wed May 02 17:12:45 2018

VR: Fix omnibox sizing when non-empty and incognito.

Also, tweak the overall width to match the current spec.

BUG= 838939 
R=tiborg

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_vr
Change-Id: I4727da0c669b6b59add3ce96e3b0b1276c4050e6
Reviewed-on: https://chromium-review.googlesource.com/1039873
Reviewed-by: Tibor Goldschwendt <tiborg@chromium.org>
Commit-Queue: Christopher Grant <cjgrant@chromium.org>
Cr-Commit-Position: refs/heads/master@{#555441}
[modify] https://crrev.com/b1e4ef59e0be1d0306e2f9761d5dda84f5c6291f/chrome/browser/vr/ui_scene_constants.h
[modify] https://crrev.com/b1e4ef59e0be1d0306e2f9761d5dda84f5c6291f/chrome/browser/vr/ui_scene_creator.cc

This bug requires manual review: M67 has already been promoted to the beta branch, so this requires manual review
Please contact the milestone owner if you have questions.
Owners: cmasso@(Android), cmasso@(iOS), kbleicher@(ChromeOS), govind@(Desktop)

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

Please verify in canary 

If you no longer intend to merge this issue into M67 please remove the merge review label.

I do intend to merge - when the "test in canary" request was issued, a Canary with the CL had not yet been pushed.  I'll check again today.

Verified in Canary 68.0.3420

I hope this is only related to VR users.

This applies to the VR UI - it cannot impact anything outside VR.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4a076b9df1296c583fe572f61a3e6b51c8cac00a

commit 4a076b9df1296c583fe572f61a3e6b51c8cac00a
Author: Christopher Grant <cjgrant@chromium.org>
Date: Wed May 09 13:10:14 2018

VR: Fix omnibox sizing when non-empty and incognito.

Also, tweak the overall width to match the current spec.

BUG= 838939 
R=​tiborg

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_vr
Change-Id: I4727da0c669b6b59add3ce96e3b0b1276c4050e6
Reviewed-on: https://chromium-review.googlesource.com/1039873
Reviewed-by: Tibor Goldschwendt <tiborg@chromium.org>
Commit-Queue: Christopher Grant <cjgrant@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#555441}(cherry picked from commit b1e4ef59e0be1d0306e2f9761d5dda84f5c6291f)
Reviewed-on: https://chromium-review.googlesource.com/1051870
Reviewed-by: Christopher Grant <cjgrant@chromium.org>
Cr-Commit-Position: refs/branch-heads/3396@{#533}
Cr-Branched-From: 9ef2aa869bc7bc0c089e255d698cca6e47d6b038-refs/heads/master@{#550428}
[modify] https://crrev.com/4a076b9df1296c583fe572f61a3e6b51c8cac00a/chrome/browser/vr/ui_scene_constants.h
[modify] https://crrev.com/4a076b9df1296c583fe572f61a3e6b51c8cac00a/chrome/browser/vr/ui_scene_creator.cc

To manually verify this:  Enter incognito, open the omnibox, and type text.  The width of the omnibox should not change as suggestions appear above the text field.  Previously, the field would grow ever so slightly.

Verified on build 68.0.3427.0 Canary.  Looks good.