[signin] Fix CrSettingsPeoplePageTest.ProfileInfoTests with Dice

Bug: 850498
Change-Id: I304084db180fa729ceb5b6ec54e4c955fb4ae401
Reviewed-on: https://chromium-review.googlesource.com/1090838Reviewed-by: Scott Chen <scottchen@chromium.org>
Commit-Queue: David Roger <droger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#565710}

chrome/test/data/webui/settings/people_page_test.js

@@ -12,9 +12,11 @@ cr.define('settings_people_page', function() {
     let syncBrowserProxy = null;
 
     suiteSetup(function() {
-      // Force easy unlock off. Those have their own ChromeOS-only tests.
       loadTimeData.overrideValues({
+        // Force easy unlock off. Those have their own ChromeOS-only tests.
         easyUnlockAllowed: false,
+        // Force Dice off. Dice is tested in the DiceUITest suite.
+        diceEnabled: false,
       });
     });