Comment 7 for bug 1185912

Possible workaround - find and edit google-chrome.desktop and insert a line:

Exec=/usr/bin/google-chrome-stable %U
+ StartupWMClass=Google-chrome-stable
Terminal=false

google-chrome.desktop should either be in "/usr/share/applications/" or "/<user>/home/.local/share/applications/"

Not sure if this has other consequences (e.g. when trying to launch a Chrome app) but seems to work so far.