Chrome Version: 55.0.2883.82/8872.67.0 Stable-channel Candy,Cyan,Daisy and Jerry
OS: Chrome

What steps will reproduce the problem?
(1)Sign into User -> Go to chrome://md-settings/manageAccessibility page
(2)Don't select 'Enable ChromeVox(Spoken feedback) option under 'Text-to-Speech' and observe enabled Settings Icon and try to click (Please refer Video)

Expected: Settings Icon should be disabled or 
should be seen only when 'Enable ChromeVox(Spoken feedback)' option is checked
Actual: Instead Settings Icon is seen enabled

This is Regression Issue as same is working fine in Chrome://settings page.
 

Deleted: Actual_EnabledIcon.webm 1.1 MB

	Actual_EnabledIcon.webm 1.1 MB View Download

Deleted: Expected.webm 748 KB

	Expected.webm 748 KB View Download