Replace usages of old createElement string second argument API

This usage breaks when Custom Elements v0 is turned off, so this
CL updates to a ElementCreationOptions object.

Existing tests, plus the work [1] to remove custom elements v0
for WebUI, should catch issues with this change.

[1] https://chromium-review.googlesource.com/c/chromium/src/+/2512381

Bug: 1110954
Change-Id: Ia44ce07366edd34d916d78c93ab5c0b786ba223b
Cq-Do-Not-Cancel-Tryjobs: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2519385
Commit-Queue: dpapad <dpapad@chromium.org>
Reviewed-by: dpapad <dpapad@chromium.org>
Auto-Submit: Mason Freed <masonfreed@chromium.org>
Cr-Commit-Position: refs/heads/master@{#824545}

chrome/browser/resources/bluetooth_internals/device_table.js

@@ -149,14 +149,16 @@ cr.define('device_table', function() {
       // Make two extra cells for the inspect link and connect errors.
       const inspectCell = row.insertCell();
 
-      const inspectLink = document.createElement('a', 'action-link');
+      const inspectLink = document.createElement('a', {is: 'action-link'});
+      inspectLink.setAttribute('is', 'action-link');
       inspectLink.textContent = 'Inspect';
       inspectCell.appendChild(inspectLink);
       inspectLink.addEventListener('click', function() {
         this.handleInspectClick_(row.sectionRowIndex);
       }.bind(this));
 
-      const forgetLink = document.createElement('a', 'action-link');
+      const forgetLink = document.createElement('a', {is: 'action-link'});
+      forgetLink.setAttribute('is', 'action-link');
       forgetLink.textContent = 'Forget';
       inspectCell.appendChild(forgetLink);
       forgetLink.addEventListener('click', function() {

chrome/browser/resources/bluetooth_internals/snackbar.js

@@ -52,7 +52,8 @@ cr.define('snackbar', function() {
       this.classList.add('snackbar');
       this.messageDiv_ = document.createElement('div');
       this.appendChild(this.messageDiv_);
-      this.actionLink_ = document.createElement('a', 'action-link');
+      this.actionLink_ = document.createElement('a', {is: 'action-link'});
+      this.actionLink_.setAttribute('is', 'action-link');
       this.appendChild(this.actionLink_);
 
       this.boundStartTimeout_ = this.startTimeout_.bind(this);

ui/webui/resources/js/action_link.js

@@ -13,9 +13,9 @@
 // underlined). This gives the user an idea that clicking this link will do
 // something similar to navigation but in the same page.
 //
-// They can be created in JavaScript like this:
+// They can be created in JavaScript like this (note second arg):
 //
-//   var link = document.createElement('a', 'action-link');  // Note second arg.
+//   var link = document.createElement('a', {is: 'action-link'});
 //
 // or with a constructor like this:
 //