Update the list of activation triggering input events.

- Removed all high-level events that follows a low-level event.
- Added missing low-level events that are known to be required.
- Added keyboard events in a conditinal manner.

source

@@ -74211,19 +74211,17 @@ END:VCARD</pre>
    time</span>.</p></li>
   </ol>
 
-  <p>An <dfn>activation triggering input event</dfn> is any event whose <code
+  <p>An <dfn export>activation triggering input event</dfn> is any event whose <code
   data-x="dom-Event-isTrusted">isTrusted</code> attribute is true and whose <code
   data-x="dom-Event-type">type</code> is one of:</p>
 
   <ul class="brief">
-   <li><code data-x="event-change">change</code></li>
-   <li><code data-x="event-click">click</code></li>
-   <li><code data-x="event-contextmenu">contextmenu</code></li>
-   <li><code data-x="event-dblclick">dblclick</code></li>
+   <li><code data-x="event-keypress">keypress</code></li>
+   <li><code data-x="event-keyup">keyup</code>, provided the key is neither the "Escape" key nor a
+       shortcut key reserved by the user agent.</li>
+   <li><code data-x="event-mousedown">mousedown</code></li>
    <li><code data-x="event-mouseup">mouseup</code></li>
    <li><code data-x="event-pointerup">pointerup</code></li>
-   <li><code data-x="event-reset">reset</code></li>
-   <li><code data-x="event-submit">submit</code></li>
    <li><code data-x="event-touchend">touchend</code></li>
   </ul>