Add update menu item and app menu icon badge

testing/variations/fieldtrial_testing_config_android.json

Index: testing/variations/fieldtrial_testing_config_android.json
diff --git a/testing/variations/fieldtrial_testing_config_android.json b/testing/variations/fieldtrial_testing_config_android.json
index c500a5df322daa8ee93bd9a0d95760b459ce65e0..20ec8af1c2858d02ad126d66b8f282b49f4c6a72 100644
--- a/testing/variations/fieldtrial_testing_config_android.json
+++ b/testing/variations/fieldtrial_testing_config_android.json
@@ -320,6 +320,36 @@
             }
         }
     ],
+    "UpdateMenuItem": [
+        {
+            "group_name": "Enabled",
+            "params": {
+                "enable_update_menu_item": "true"
+            }
+        },
+        {
+            "group_name": "EnabledWithBadge",
+            "params": {
+                "enable_update_badge": "true",
+                "enable_update_menu_item": "true"
+            }
+        },
+        {
+            "group_name": "EnabledWithSummary",
+            "params": {
+                "enable_update_menu_item": "true",
+                "show_summary": "true"
+            }
+        },
+        {
+            "group_name": "EnabledWithCustomSummary",
+            "params": {
+                "custom_summary": "Custom update summary",
+                "enable_update_menu_item": "true",
+                "show_summary": "true"
+            }
+        }
+    ],
     "VarationsServiceControl": [
         {
             "group_name": "Interval_30min",