Disable UserManagerBrowserTest.UserManageTest on Win (Timedout)

chrome/test/data/webui/md_user_manager/user_manager_browsertest.js

Index: chrome/test/data/webui/md_user_manager/user_manager_browsertest.js
diff --git a/chrome/test/data/webui/md_user_manager/user_manager_browsertest.js b/chrome/test/data/webui/md_user_manager/user_manager_browsertest.js
index 2ffff2cd6041e00c2e5f1cb0c06a0e62b93bbcb3..e204d7c4bd6a6614e74f04ea2b54c951bb0e09d2 100644
--- a/chrome/test/data/webui/md_user_manager/user_manager_browsertest.js
+++ b/chrome/test/data/webui/md_user_manager/user_manager_browsertest.js
@@ -37,7 +37,12 @@ UserManagerBrowserTest.prototype = {
   runAccessibilityChecks: false,
 };
 
-TEST_F('UserManagerBrowserTest', 'UserManagerTest', function() {
+GEN('#if defined(OS_WIN)');
+GEN('#define MAYBE_UserManagerTest DISABLED_UserManagerTest');
+GEN('#else');
+GEN('#define MAYBE_UserManagerTest UserManagerTest');
+GEN('#endif');
+TEST_F('UserManagerBrowserTest', 'MAYBE_UserManagerTest', function() {
   user_manager.control_bar_tests.registerTests();
   user_manager.create_profile_tests.registerTests();
   user_manager.import_supervised_user_tests.registerTests();