I developed a chrome extension Hyperbook saver that works with Google Drive to save images and texts. How do I enable "Works with Google drive" feature for it. I couldn't find any flag in developer Dashboard or manifest.json file. Please help.
In your Chrome extension manifest, you just need to make sure you have:
"container": "GOOGLE_DRIVE",
"api_console_project_id": "your developer console project number here",
See this manifest as an example: https://github.com/googledrive/zipextractor/blob/master/cws/zipextractor/manifest.json