Chrome missing volume slider?

According to JohnSilver at Google Chrome Help forum, there is a flag that when disabled brings back the full media controls. Follow these steps :

• Open a new tab

• Type in :

   chrome://flags/#enable-modern-media-controls
  

• Set it to Disabled
• & You're done. This is only a temporary solution since eventually the new options will be forced enabled.

This flag will be removed soon and the new design will be permanent. You have to send feedback. On Chrome, click menu icon and go to Help > Report an issue.