Remove all calls to domAutomationController.setAutomationId.

ui/webui/resources/js/webui_resource_test.js

Index: ui/webui/resources/js/webui_resource_test.js
diff --git a/ui/webui/resources/js/webui_resource_test.js b/ui/webui/resources/js/webui_resource_test.js
index 12b3c37f510161154fcb09fdc9ac9a53329f9545..cb0c060be03ec31a5b378c134924798f3cc4151f 100644
--- a/ui/webui/resources/js/webui_resource_test.js
+++ b/ui/webui/resources/js/webui_resource_test.js
@@ -195,7 +195,6 @@ function continueTesting(opt_asyncTestFailure) {
     endTests(cleanTestRun);
   }
   if (!done) {
-    domAutomationController.setAutomationId(1);
     domAutomationController.send('PENDING');
   }
 }
@@ -208,7 +207,6 @@ exports.runTests = runTests;
  * @param {boolean} success Indicates if the test completed successfully.
  */
 function endTests(success) {
-  domAutomationController.setAutomationId(1);
   domAutomationController.send(success ? 'SUCCESS' : 'FAILURE');
 }