[Merge] lp:~woodrow-shen/gnome-screenshot/fix-hidpi.trusty into lp:ubuntu/trusty/gnome-screenshot

[Woodrow Shen]

Got it, so let the upstream review this patch, thanks your help.
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https://code.launchpad.net/~woodrow-shen/gnome-screenshot/fix-hidpi.trusty/+merge/248486
Your team Ubuntu branches is requested to review the proposed merge of lp:~woodrow-shen/gnome-screenshot/fix-hidpi.trusty into lp:ubuntu/trusty/gnome-screenshot.