test(chrome): compare the secure fact across both producers

it is the fourth fact the dump and the web runtime derive independently,
and the one that decides whether a typed value is written into the
shared record. three-valued, so the fixture guard requires all three
states rather than both polarities.

internal/driver/chrome/testdata/fact-parity-shadow.html

@@ -26,6 +26,7 @@
           <button id="shadow-save">save</button>
           <button id="shadow-cancel" disabled>cancel</button>
           <input id="shadow-amount" type="text" value="10" placeholder="0.00" />
+          <input id="shadow-password" type="password" placeholder="Password" />
           <div id="shadow-plain">plain</div>
         </div>
         <div id="shadow-scroller"><div id="shadow-scroller-content"></div></div>`;

internal/driver/chrome/testdata/fact-parity.html

@@ -61,6 +61,7 @@
     <input id="hint-aria" type="text" aria-label="Search" placeholder="Type here" name="q" />
     <input id="hint-placeholder" type="text" placeholder="What's this for?" name="note-field" />
     <input id="hint-name" type="text" name="reference-field" />
+    <input id="password" type="password" placeholder="Password" />
     <input id="agree" type="checkbox" placeholder="not a hint" />
     <textarea id="notes"></textarea>
     <!-- contenteditable is INHERITED, so #bio-word answers isContentEditable