added shortcut key tests to ChromeDriverTest
added shortcut key tests to ChromeDriverTest

HyungJon/HubTurbo,saav/HubTurbo,gaieepo/HubTurbo,Honoo/HubTurbo,Sumei1009/HubTurbo,Sumei1009/HubTurbo,Honoo/HubTurbo,gaieepo/HubTurbo,saav/HubTurbo,ianngiaw/HubTurbo,HyungJon/HubTurbo,ianngiaw/HubTurbo