[Hotword] Update helper extension to listen for change to audio logging preference.

chrome/browser/resources/hotword_helper/optin_client.js

Index: chrome/browser/resources/hotword_helper/optin_client.js
diff --git a/chrome/browser/resources/hotword_helper/optin_client.js b/chrome/browser/resources/hotword_helper/optin_client.js
index a688df76b9eb30159037a66f81eaa7ad2005976c..6eccdb1475ee1615c40941ae608a4dd3cc058f9d 100644
--- a/chrome/browser/resources/hotword_helper/optin_client.js
+++ b/chrome/browser/resources/hotword_helper/optin_client.js
@@ -35,7 +35,11 @@ OptInClient.CommandFromPage = {
   // User has explicitly clicked 'no'.
   CLICKED_NO_OPTIN: 'hcno',
   // User has opted in.
-  CLICKED_OPTIN: 'hco'
+  CLICKED_OPTIN: 'hco',
+  // Audio logging is opted in.
+  AUDIO_LOGGING_ON: 'alon',
+  // Audio logging is opted out.
+  AUDIO_LOGGING_OFF: 'aloff',
 };
 
 
@@ -49,7 +53,8 @@ OptInClient.EXISTS_ = 'chwoihe';
 
 /**
  * Handles the messages posted to the window, mainly listening for
- * the optin and no optin clicks.
+ * the optin and no optin clicks. Also listening for preference on
+ * audio logging.
  * @param {!MessageEvent} messageEvent Message event from the window.
  * @private
  */
@@ -65,6 +70,14 @@ OptInClient.prototype.handleCommandFromPage_ = function(messageEvent) {
         chrome.runtime.sendMessage(
             {'type': command});
         break;
+      case OptInClient.CommandFromPage.AUDIO_LOGGING_ON:
+        chrome.runtime.sendMessage(
+            {'type': command});
+        break;
+      case OptInClient.CommandFromPage.AUDIO_LOGGING_OFF:
+        chrome.runtime.sendMessage(
+            {'type': command});

[saurya1, 2014/03/27 16:29:22]

If you want to clean this up you can just remove the
chrome.runtime.sendMessage() and breaks above and have a default case that just
passes on the message.

[rpetterson, 2014/03/27 16:37:19]

I assume I don't actually need the switch statement anymore? I think I've
cleaned it up, but PTAL.

+        break;
     }
   }
 };