Using a private API to determine if there is an account for the profile

chrome/browser/resources/google_now/background.js

Index: chrome/browser/resources/google_now/background.js
diff --git a/chrome/browser/resources/google_now/background.js b/chrome/browser/resources/google_now/background.js
index f1a44a1efc83497e7a96d8e92ac60d2efe06d86e..304c7e46355613ed509be86a8c086592ce050116 100644
--- a/chrome/browser/resources/google_now/background.js
+++ b/chrome/browser/resources/google_now/background.js
@@ -235,7 +235,7 @@ function recordEvent(event) {
  *     parameter.
  */
 function setAuthorization(request, callbackBoolean) {
-  authenticationManager.isSignedIn(function(token) {
+  authenticationManager.getAuthToken(function(token) {
     if (!token) {
       callbackBoolean(false);
       return;
@@ -981,8 +981,7 @@ function updateRunningState(
  */
 function onStateChange() {
   tasks.add(STATE_CHANGED_TASK_NAME, function() {
-    authenticationManager.isSignedIn(function(token) {
-      var signedIn = !!token;
+    authenticationManager.isSignedIn(function(signedIn) {
       instrumented.metricsPrivate.getVariationParams(
           'GoogleNow',
           function(response) {