Menu key presses aren't intercepted the right way by the system

[john]

I use Ubuntu 16.04. I used current GUI (System Settings/Keyboard/Shortcuts...) to set a shortcut key for lowering the volume.

I'm inside a Google Chrome window with my address bar focused. I press Menu Key and the volume is lowered but Chrome responds too to my key press and displays what it would normally display if I press Menu Key. I pressed Menu key inside a Tilda window and Tilda didn't react. However, I think it's an Ubuntu bug since the Menu key presses aren't intercepted the right way. If they were, Chrome would have nothing to react to.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: unity-control-center 15.04.0+16.04.20160705-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-34.53-lowlatency 4.4.15
Uname: Linux 4.4.0-34-lowlatency x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Aug 20 17:24:27 2016
ExecutablePath: /usr/bin/unity-control-center
SourcePackage: unity-control-center
UpgradeStatus: No upgrade log present (probably fresh install)