Homestyx hydra

R1:4e40b17acae3

Don't mutate DOM by showing a tooltip on touch events

Summary:
This fix further addresses T10229. The problem and solution are the same:

- If the DOM is mutated during a touch, it never registers as a 'click' so the tapped button does not activate.
- This was partially addressed in D15136, which covered taps on code lines in a Differential view.
- Tapping on some buttons, like "Reply" or "Hide Comment" still caused the problem by showing a tooltip.
- There are probably similar buttons elsewhere, other…
Repository: R1 hydra
Commit Date: Feb 19 2016