Update from https://crrev.com/311145

net/http/transport_security_state_static.json

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file contains the HSTS preloaded list in a machine readable format.
 
 // The top-level element is a dictionary with two keys: "pinsets" maps details
 // of certificate pinning to a name and "entries" contains the HSTS details for
 // each host.
 //
@@ skipping 1708 matching lines @@
     { "name": "skogskultur.fi", "include_subdomains": true, "mode": "force-https" },
     { "name": "sorz.org", "include_subdomains": true, "mode": "force-https" },
     { "name": "spawn.cz", "include_subdomains": true, "mode": "force-https" },
     { "name": "spreed.me", "include_subdomains": true, "mode": "force-https" },
     { "name": "studienportal.eu", "include_subdomains": true, "mode": "force-https" },
     { "name": "tc-bonito.de", "include_subdomains": true, "mode": "force-https" },
     { "name": "thomasgriffin.io", "include_subdomains": true, "mode": "force-https" },
     { "name": "thyngster.com", "include_subdomains": true, "mode": "force-https" },
     { "name": "tid.jp", "include_subdomains": true, "mode": "force-https" },
     { "name": "tonywebster.com", "include_subdomains": true, "mode": "force-https" },
-    { "name": "tucuxi.org", "include_subdomains": true, "mode": "force-https" }
+    { "name": "tucuxi.org", "include_subdomains": true, "mode": "force-https" },
+    { "name": "firebaseio.com", "include_subdomains": true, "mode": "force-https" },
+    { "name": "firebaseio-demo.com", "include_subdomains": true, "mode": "force-https" }
   ],
 
   // |ReportUMAOnPinFailure| uses these to report which domain was associated
   // with the public key pinning failure.
   //
   // DO NOT CHANGE THE ORDERING OF THESE NAMES OR REMOVE ANY OF THEM. Add new
   // domains at the END of the array.
   "domain_ids": [
     "NOT_PINNED",
     "GOOGLE_COM",
@@ skipping 246 matching lines @@
     "GOOGLETAGMANAGER_COM",
     "GOOGLETAGSERVICES_COM",
     "DROPBOX_COM",
     "YOUTUBE_NOCOOKIE_COM",
     "2MDN_NET",
     "FACEBOOK_COM",
     "SPIDEROAK_COM",
     "BLOGGER_COM"
   ]
 }