[sailfish-browser] Enable chrome when active tab is changed. Contributes to JB#17255
[sailfish-browser] Enable chrome when active tab is changed. Contributes to JB#17255

rojkov/sailfish-browser,sailfishos/sailfish-browser,sailfishos/sailfish-browser,rojkov/sailfish-browser,alinelena/sailfish-browser,sailfishos/sailfish-browser,sailfishos/sailfish-browser,alinelena/sailfish-browser,rojkov/sailfish-browser,alinelena/sailfish-browser,sailfishos/sailfish-browser,alinelena/sailfish-browser