Collect tab timing information for use in telementry-based startup tests

chrome/test/ui/ui_test.h

Index: chrome/test/ui/ui_test.h
diff --git a/chrome/test/ui/ui_test.h b/chrome/test/ui/ui_test.h
index ade8dfb4170695786ee5ae786f406641002e391a..eca49fe3cf2e5fdfb1879958f8b5af4e24fbb2f7 100644
--- a/chrome/test/ui/ui_test.h
+++ b/chrome/test/ui/ui_test.h
@@ -309,6 +309,10 @@ class UITestBase {
   // This can be set to true to have the test run the dom automation case.
   bool dom_automation_enabled_;
 
+  // This can be set to true to enable the stats collection extension JS
+  // bindings.
+  bool stats_collection_extension_enabled_;
+
   // See set_template_user_data().
   base::FilePath template_user_data_;