Support hotwording on google.com and the new tab page.

chrome/browser/resources/hotword/manager.js

Index: chrome/browser/resources/hotword/manager.js
diff --git a/chrome/browser/resources/hotword/manager.js b/chrome/browser/resources/hotword/manager.js
index dfe4c7ef860388f86c02b934f2a01e6a28ff7ff0..e7731f1aa0a70965258c005b5d4c9d436cdcdab4 100644
--- a/chrome/browser/resources/hotword/manager.js
+++ b/chrome/browser/resources/hotword/manager.js
@@ -19,6 +19,7 @@
 
   // Hotwording state.
   var stateManager = new hotword.StateManager();
+  var pageAudioManager = new hotword.PageAudioManager(stateManager);
 
   // Detect Chrome startup and make sure we get a chance to run.
   chrome.runtime.onStartup.addListener(function() {
@@ -34,7 +35,7 @@
   // is installed.
   chrome.management.onInstalled.addListener(function(info) {
     if (info.id == hotword.constants.SHARED_MODULE_ID)
-      chrome.runtime.reload();
+     chrome.runtime.reload();
   });
 
   // Detect when a session has requested to be started and stopped.
@@ -47,6 +48,10 @@
         hotword.constants.SessionSource.LAUNCHER,
         function() {
           chrome.hotwordPrivate.setHotwordSessionState(true, function() {});
+        },
+        function() {
+          chrome.hotwordPrivate.notifyHotwordRecognition('search',

[rpetterson, 2014/09/25 02:23:37]

Based on hotword_private_api.cc, the type -- 'search' in this case -- parameter
isn't used. What will this eventually do?

[Anand Mistry (off Chromium), 2014/09/25 05:23:42]

Honestly, no idea. I have no plans for it. It already existed in the API.

[rpetterson, 2014/09/30 01:57:30]

I think Mukai originally wrote it . . . looking more at the code, it's not used
at all. I've added crbug.com/418847 to make sure we clean it up at some point.

+                                                         function() {});
         });
   });