You can save any file from the Internet directly to your Google Drive without saving them to the computer. 
It allow you to save web, Slack, pCloud, WebDAV files to Google Drive folder directly. 
This app works with a simple Chrome extension. You can transfer an unlimited size per a file (1M~GB, maybe TB). 

This app only works locally without going through the server, so you can transfer any (public, not public) file URL.
Provides Slack File Picker, pCloud File Picker, WebDAV File Picker.

Supports Direct Download URL file through the server, and Save to Google Drive. (One URL at a time, No extension required)