Version:56.0.2900.0/8940.0.0 dev-channel auron_paine, Peach-Pit, Jerry
OS: Chrome
What steps will reproduce the problem?
(1) Sign in to user>> take 1 screenshot or download images>> go to notification bar overlay on beside the Uber tray>> and observe

Expected: Tool tip should be seen on close or remove button as it is a icon button
Actual: Instead no tool tip is seen on close or remove button, but tool tip is seen DND, settings, Clear all buttons

Raising this as a Non-Regression issue as same is seen in M53 as well

Note: Tool-tip is seen for Close or remove button in Files.app Add app overlay

@Yoshiki: Please take a look at this
 

Deleted: Actual.png 85.5 KB

	Actual.png 85.5 KB View Download