I'm only a year and a half late to this party, but am trying to do the same thing and found this in the Chromium admin guide for IOS:   Policy Support on Chrome on iOS is being removed in Chrome 48 as part of Chrome's move to WKWebView where supporting many of the policies was not possible.  ... View more

I was able to get it to run as a fixed app, but not the managedbookmarks option as previously listed in another community entry.   I also couldn't get the specific bookmarks to list anywhere on Chrome, despite that it should allow for that!   ... View more

Additionally, for the iOS Meraki Backpack feature to function, iOS v9 and above now require the website hosting the shared documents to use TLS v1.2 for the HTTPS connection. ... View more