Simulate user inputs in user-activation/no-activation-thru-escape-key.html

Use testdriver Action API to simulate mouse actions in
html/user-activation/no-activation-thru-escape-key.html.

Bug: 1145677
Change-Id: Id37bbe39be94b096939fe81d0c8053306accecb3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2537132
Reviewed-by: Mustaq Ahmed <[email protected]>
Commit-Queue: Lan Wei <[email protected]>
Cr-Commit-Position: refs/heads/master@{#828330}

Author: LanWei22

html/user-activation/no-activation-thru-escape-key-manual.html renamed to html/user-activation/no-activation-thru-escape-key.html

@@ -8,6 +8,8 @@
     <link rel="help" href="https://html.spec.whatwg.org/#triggered-by-user-activation">
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
+    <script src="/resources/testdriver.js"></script>
+    <script src="/resources/testdriver-vendor.js"></script>
     <style>
       #target {
         width: 40ex;
@@ -16,6 +18,7 @@
     </style>
     <script type="text/javascript">
       let keydown_event_fired = false;
+      let keyup_event_fired = false;
 
       function run() {
         let textbox_elem = document.getElementById("target");
@@ -36,9 +39,19 @@
 
         on_event(textbox_elem, "keyup", () => {
           test_esc_key.step(() => {
+            if (keydown_event_fired)
+              keyup_event_fired = true;
             assert_true(keydown_event_fired, "keydown event fired before keyup");
             assert_false(navigator.userActivation.isActive, "No user activation on keyup");
           });
+        });
+
+        // Inject mouse inputs.
+        const escape_key = "\uE00C";
+        test_driver
+        .send_keys(textbox_elem, escape_key)
+        .then(() => {
+          assert_true(keyup_event_fired, "keydown event fired before keyup");
           test_esc_key.done();
         });
       }