Chrome Version:  59.0.3051.3/9404.0.0 dev-channel Squawks,Falco and Link
OS: Chrome

What steps will reproduce the problem?
(1)Sign in to user -> Sign out -> Now in Profiles page Click on 3 dot menu so that 'Add Supervised User' Button is seen
(2) Now click on User i.e. to enter paswd -> observe 'Add supervised' button is still seen (Please refer Video)

Expected: 'Add supervised' button should be disabled on clicking User's Enter password  textbox
Actual:  Instead 'Add supervised' button is still seen

This is Regression Issue as same is working fine in 51.0.2704.55/8172.39.0 beta channel blaze device
 

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Deleted: Expected.MOV 1.6 MB

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