UserAgent: Mozilla/5.0 (X11; CrOS armv7l 10176.41.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.79 Safari/537.36
Platform: 10176.41.0 (Official Build) beta-channel veyron_minnie

Steps to reproduce the problem:
1. launch the mx player
2. Setting > List > Folders > add
3. 

What is the expected behavior?
couldn't see the /storage/sdcard folder

What went wrong?
Hello,

I use a Asus Chromebook Flip and often use an Android app using ARC

In a typical Android App (File Explorer, Media Player), find the SD card in the / storage / path.

But ARC doesn't show the sd card in the /storage/ path, so the Android App (File Explore, Media Player) can't see the contents of the SD card.

The expected situation should be that the sd card can be accessed via the /storage/ path in ARC's Android App.

Did this work before? N/A 

Chrome version: 64.0.3282.79  Channel: beta
OS Version: 10176.41.0
Flash Version: 28.0.0.137 /opt/google/chrome/pepper/libpepflashplayer.so