Google Docs:
application/vnd.google-apps.document
application/vnd.google-apps.kix
Google Presentations:
application/vnd.google-apps.presentation
Google Spreadsheets:
application/vnd.google-apps.spreadsheet
Google Drawing:
application/vnd.google-apps.drawing
See here for more information.
Here is a long list of Google Docs and Google Drive MIME types (it is not exhaustive):
application/vnd.google-apps.audio
application/vnd.google-apps.document
application/vnd.google-apps.drawing
application/vnd.google-apps.file
application/vnd.google-apps.folder
application/vnd.google-apps.form
application/vnd.google-apps.fusiontable
application/vnd.google-apps.kix
application/vnd.google-apps.photo
application/vnd.google-apps.presentation
application/vnd.google-apps.script
application/vnd.google-apps.sites
application/vnd.google-apps.spreadsheet
application/vnd.google-apps.unknown
application/vnd.google-apps.video
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…