Chips component onFocus & onBlur events do not pass arguments to callback function

[KeithGillette]

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Current behavior
The Chips component recently got onBlur & onFocus events, which, according to the documentation, are both supposed to pass originalEvent: Browser event to the provided callback method.

However, both the onBlur & onFocus events in the Chips component pass nothing to the callback method, so its parameter values are undefined.

Expected behavior
The onFocus and onBlur events would pass the original FocusEvent to the provided callback method, per the documentation.

Better yet, the onFocus & onBlur events would pass any arbitrary arguments passed to the provided callback method.

Minimal reproduction of the problem with instructions
http://plnkr.co/edit/Rnv7IKmqh98ntpDnY2H9?p=preview

What is the motivation / use case for changing the behavior?

• Conform to documentation.
• Easily allow server save of value onBlur rather than onAdd & onRemove.