Select-to-speak extension code

chrome/browser/resources/chromeos/select_to_speak/manifest.json.jinja2

 {
 {%if key is defined %}
   "key": "{{key}}",
 {% endif %}
   "manifest_version": 2,
   "name": "TODO: Translated Select to speak name",
   "version": "{{set_version}}",
   "description": "TODO: Translated Select to speak description",
 {% if is_guest_manifest == '1' %}
   "incognito": "split",
 {% endif %}
   "background": {
     "scripts": [
-      "background.js"
+      "select_to_speak.js"
     ]
   },
   "permissions": [
-    "accessibilityPrivate"
+    "accessibilityPrivate",
+    "tts"
   ],
   "automation": {
     "desktop": true
   }
 }