Use this sample embed code for you to embed a Google Drive folder / file into Moodle or Canvas (replace with your folder ID):
Go the Sharing settings in Google Drive to find the file/folder ID--change share settings to "Anyone with the link can view" and copy the ID into the sample embed code below:
Folder / List View
<p><iframe src="https://drive.google.com/embeddedfolderview?id=0B5h4DicYhhOQekUyQkc3TXFkUDA" width="100%" height="400" frameborder="0"></iframe></p>
Grid View (just add #grid to code)--looks much nicer!!!
<p><iframe src="https://drive.google.com/embeddedfolderview?id=0B1ov2iEDk7AbbkNIc2t1ci16RDg#grid" width="100%" height="400" frameborder="0"></iframe></p>
Sample Google Drive Folder Embedded: Grid View (much "sexier"!)
Sample Google Drive Folder Embedded: Folder / List View (utilitarian view)
Same exact folder as above--just different view!