This is just my own strong opinion here, but I do not like any of Google's apps on a Mac.
Especially having that Google Keystone agent kext installed in the OS X extensions folder.
It is true that Google installs a lot of stuff over the entire Mac OS X system and some of this has had a negative effect on OS X performance and, in some case here, has had issues with interfering with the OS X Finder.
I do not think Google Earth is problematic on OS X, but I stick to my guns that both Google Chrome browser and Google Drive aren't that great and are still causing issue for some users running OS X either OS X 10.8 Mountain Lion and OS X 10.9 Mavericks.
Some of the regular contributors will question my advice, but I have had users tell me as soon as they stopped using and uninstalled both or either Chrome or Drive, they saw the OS X performance immediately improve.
So, if you are running any of these I would just completely install these per the uninstall instructions on Google's website.