Update permissions to include all supported domains, and remove externally_connectable.

chrome/browser/resources/hotword/manifest.json

 {
   // Extension ID: nbpagnldghgfoolbancepceaanlmhfmd
   "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbHXRPiq2De9EJ+4pvNN6uE/D2avxrqyLSpA/Hq3II+btkPl1gboY3oUPTfevpVOFa90Y1c1b3/W682dXqybT0klIvFLKhdQx0LiVqSUQyIaDrwOCSo/ZcukbEwDRojegWymCjHvX6WZk4kKZzTJYzY1vrp0TWKLhttEMN9KFmowIDAQAB",
 
   "name": "Hotword triggering",
   "version": "0.0.1.2",
   "manifest_version": 2,
 
   "background": {
     "scripts": [
       "chrome://resources/js/cr.js",
       "chrome://resources/js/util.js",
       "chrome://resources/js/cr/event_target.js",
       "constants.js",
       "logging.js",
       "metrics.js",
       "nacl_manager.js",
       "state_manager.js",
       "base_session_manager.js",
       "always_on_manager.js",
       "launcher_manager.js",
       "page_audio_manager.js",
       "manager.js"
     ],
     "persistent": false
   },
 
   "permissions": [
     "*://*.google.com/*",
+    "*://*.google.ru/*",
+    "*://*.google.co.uk/*",
+    "*://*.google.fr/*",
+    "*://*.google.de/*",
     "chrome://newtab/",
     "chrome://resources/",
     "audioCapture",
     "hotwordPrivate",
     "management",
     "metricsPrivate",
     "tabs"
   ],
 
-  "externally_connectable": {
-    "matches": [
-      "*://*.google.com/*",
-      "chrome://newtab/"
-    ]
-  },
-
   "import": [
     {
       "id": "lccekmodgklaepjeofjdjpbminllajkg"
     }
   ],
 
   "content_security_policy": "object-src 'none'; script-src chrome://resources 'self'",
   "minimum_chrome_version": "38"
 }