DevTools: add console test helpers to new test runner & migrate a console test

third_party/WebKit/Source/devtools/front_end/integration_test_runner.json

 {
   "modules" : [
     { "name": "test_runner", "type": "autostart" },
     { "name": "integration_test_runner", "type": "autostart" },
     { "name": "console_test_runner" },
-
+    { "name": "elements_test_runner" },
 
 
     { "name": "platform", "type": "autostart" },
     { "name": "dom_extension", "type": "autostart" },
     { "name": "main", "type": "autostart" },
     { "name": "components", "type": "autostart"},
     { "name": "ui", "type": "autostart" },
     { "name": "sdk", "type": "autostart" },
     { "name": "protocol", "type": "autostart" },
     { "name": "host", "type": "autostart" },
@@ skipping 44 matching lines @@
     { "name": "event_listeners" },
     { "name": "object_ui"},
     { "name": "help", "type": "autostart"},
     { "name": "workspace_diff" },
     { "name": "console_model", "type": "autostart"},
     { "name": "network_log", "type": "autostart"},
     { "name": "text_utils", "type": "autostart"},
     { "name": "changes"},
     { "name": "mobile_throttling", "type": "autostart"},
     { "name": "network_priorities"},
-    { "name": "formatter" }
+    { "name": "formatter" },
+    { "name": "counters", "type": "autostart" }
   ],
 
   "has_html": true
 }