Add a StateManager for managing hotwording state based on various factors

chrome/browser/resources/hotword/manifest.json

Index: chrome/browser/resources/hotword/manifest.json
diff --git a/chrome/browser/resources/hotword/manifest.json b/chrome/browser/resources/hotword/manifest.json
index 4fb5b11ca95ef386e082af2f9ed221674527def1..4d75c2ace1f5c9b50fed9cf7a0c448d48f5ca6ae 100644
--- a/chrome/browser/resources/hotword/manifest.json
+++ b/chrome/browser/resources/hotword/manifest.json
@@ -3,7 +3,7 @@
   "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbHXRPiq2De9EJ+4pvNN6uE/D2avxrqyLSpA/Hq3II+btkPl1gboY3oUPTfevpVOFa90Y1c1b3/W682dXqybT0klIvFLKhdQx0LiVqSUQyIaDrwOCSo/ZcukbEwDRojegWymCjHvX6WZk4kKZzTJYzY1vrp0TWKLhttEMN9KFmowIDAQAB",
 
   "name": "Hotword triggering",
-  "version": "0.0.1.0",
+  "version": "0.0.1.1",
   "manifest_version": 2,
 
   "background": {
@@ -13,6 +13,7 @@
       "chrome://resources/js/cr/event_target.js",
       "constants.js",
       "nacl_manager.js",
+      "state_manager.js",
       "manager.js"
     ],
     "persistent": false
@@ -22,7 +23,9 @@
     "*://*.google.com/*",
     "chrome://newtab/",
     "chrome://resources/",
+    "audioCapture",
     "hotwordPrivate",
+    "management",
     "tabs"
   ],
 
@@ -42,5 +45,6 @@
     }
   ],
 
+  "content_security_policy": "object-src 'none'; script-src chrome://resources 'self'",
   "minimum_chrome_version": "38"
 }