title: Google Drive Editor Share button is disabled when viewed in an iFrame
body: <p>We've developed an integration to our application where we wrap the Google Document Editor in an iFrame so that we can edit content in context of our application.  This week we've noticed that the Share button is disabled when working with Documents and Spreadsheets wrapped in the iFrame. (The Share button appears to work as normal with Presentations.)  Was there an update to the document editor that would cause the share button in the edit view to be disabled when viewed through an iFrame?  Is this a bug, or was this an intentional change?</p>