Social Rabbit Update 3.0.2. - 13. Import of Images and GIF’s from Pixabay.com and Giphy.com straight to Media Gallery.
Why need an extra addon.. Just create an account at both sites and explore right there. Besides this you are able to upload pictures within WordPress itself. There's really no need for something like google drive in my honest opinion.
As far as i know Social Rabbit doesn't have the functionality to post upload and even handle videos? Correct me if i'm wrong thanks.