Opening on behalf of @dsexton

Chrome Canary (65)
Windows 10

Bisecting on these version numbers: 
*Before segment, bug isn't here
*Crashing segment, unable to test bug:  522661 -524261
*After segment, it repros.

Steps to repro:
# Launch NVDA
# Launch chrome
# Press alt+d to get to the address bar
# Press insert+space to activate forms mode
# Press insert+space to deactivate forms mode
# Read with arrows, you will find:

BookmarksresourcesresourcesMenu containing hidden bookmarksOther bookmarksOther bookmarksManaged bookmarksManaged bookmarksShow appsApps
Separator
For quick access, place your bookmarks here on the bookmarks bar.For quick access, place your bookmarks here on the bookmarks bar.Import bookmarks now…New tabGoogle HangoutsGoogle HangoutsCloseNew TabNew TabClosePress to go back, use context menu to see historyPress to go forward, context menu to see historyReload this pageOpen the home pageAddress and search barThis page wants to install a service handler.ZoomSave credit cardSave credit cardTranslate this pageTranslate this pageBookmark this pageBookmark this pageBookmark this pageClear inputExtensionsBeyondCorp - ON modePassword AlertGoogle Corporate Extension Reporter

Customize and control Google ChromeInfobar Container

Expected: Forms mode should not turn on or off when omnibox is focused