If you want to show a folder from Google Drive in Canvas, you can use an iframe to accomplish this.

First, get the public URL of the folder. This might light like this: https://drive.google.com/folders/0B4Yh4X4YxubsVE1BZmtzWk5jbFk.

That last bit is the folder ID: 0B4Yh4X4YxubsVE1BZmtzWk5jbFk.

The iframe HTML code is:

List View:

<iframe src="https://drive.google.com/embeddedfolderview?id=FOLDER-ID#list" width="800" height="600" frameborder="0"></iframe>

Example: <iframe src="https://drive.google.com/embeddedfolderview?id=0B4Yh4X4YxubsVE1BZmtzWk5jbFk#list" width="800" height="600" frameborder="0"></iframe>

Grid View:

<iframe src="https://drive.google.com/embeddedfolderview?id=FOLDER-ID#grid" width="800" height="600" frameborder="0"></iframe>

Example: <iframe src="https://drive.google.com/embeddedfolderview?id=0B4Yh4X4YxubsVE1BZmtzWk5jbFk#grid" width="800" height="600" frameborder="0"></iframe>

Just make sure the folder is accessible to view, so check your folder permission within Google Drive.

List View

Grid View