Change default code flag to NewAvatarMenu.

chrome/browser/resources/options/browser_options_profile_list.js

Index: chrome/browser/resources/options/browser_options_profile_list.js
diff --git a/chrome/browser/resources/options/browser_options_profile_list.js b/chrome/browser/resources/options/browser_options_profile_list.js
index 81a4181ab97c30ff4d5adccc9c318ef24a2750a4..96adf2fec7bfb27a87dde2c92f426e7a1a3b07cd 100644
--- a/chrome/browser/resources/options/browser_options_profile_list.js
+++ b/chrome/browser/resources/options/browser_options_profile_list.js
@@ -51,6 +51,7 @@ cr.define('options.browser_options', function() {
       var iconEl = this.ownerDocument.createElement('img');
       iconEl.className = 'profile-img';
       iconEl.style.content = getProfileAvatarIcon(profileInfo.iconURL);
+      iconEl.alt = '';

[noms (inactive), 2015/03/17 14:26:30]

nit: can we/should we put something useful in here? like the profile name and
"avatar" or something?

[Mike Lerman, 2015/03/18 19:29:48]

It's right next to the profile's name, if you can't see the image adds no value.
For accessibility, when this is being read out loud, it's probably more useful
just to not read the name twice, but only once.

       containerEl.appendChild(iconEl);
 
       var nameEl = this.ownerDocument.createElement('div');