Read the fine print
Using Google's cloud storage, read the fine print. You are prohibited from storing a long list of prohibited content, begging the question how would they know and why would they care? Perhaps because they're a bit too generous with sharing your files with the world.
When you upload or otherwise submit content to our Services, you give Google (and those we work with) a worldwide license to use, host, store, reproduce, modify, create derivative works (such as those resulting from translations, adaptations or other changes we make so that your content works better with our Services), communicate, publish, publicly perform, publicly display and distribute such content. The rights you grant in this license are for the limited purpose of operating, promoting, and improving our Services, and to develop new ones. This license continues even if you stop using our Services (for example, for a business listing you have added to Google Maps).