Bugfix/on close print dialog chrome

[kruzzze]

#495
After updating, Chrome stopped setting focus on the window. In order to track whether the print window has been closed, it is necessary to return a reaction to the mouseover to trigger the callback.

[coveralls]

Pull Request Test Coverage Report for Build 332

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 48.241%

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Totals
Change from base Build 328:	0.0%
Covered Lines:	239
Relevant Lines:	363

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💛 - Coveralls