Let finch control NewAvatarMenu. Disabling a flag forces disable all mirror.

BUG=401881, 287883

Review URL: https://codereview.chromium.org/449993004

Cr-Commit-Position: refs/heads/master@{#288469}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288469 0039d316-1c4b-4281-b951-d872f2087c98

components/signin/core/common/profile_management_switches.cc

@@ -81,9 +81,9 @@ State GetProcessState() {
   } else if (is_new_avatar_menu) {
     return STATE_NEW_AVATAR_MENU;
   } else if (not_new_profile_management) {
-    return STATE_NEW_AVATAR_MENU;
+    return STATE_OLD_AVATAR_MENU;
   } else if (not_consistent_identity) {
-    return STATE_NEW_AVATAR_MENU;
+    return STATE_OLD_AVATAR_MENU;
   }
 
   // Set the default state
@@ -98,6 +98,8 @@ State GetProcessState() {
       state = STATE_NEW_PROFILE_MANAGEMENT;
     } else if (trial_type == "AccountConsistency") {
       state = STATE_ACCOUNT_CONSISTENCY;
+    } else if (trial_type == "NewAvatarMenu") {
+      state = STATE_NEW_AVATAR_MENU;
     } else {
       state = STATE_OLD_AVATAR_MENU;
     }