Update Accessibility model when Accessibility pane is shown.

Bug: 1024700
Change-Id: I789300ee0bd280ce01e5a58d7d26daaa49c27a0c
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1914891
Commit-Queue: Alice Boxhall <aboxhall@chromium.org>
Reviewed-by: Chris Hall <chrishall@chromium.org>
Reviewed-by: Tim van der Lippe <tvanderlippe@chromium.org>
diff --git a/front_end/accessibility/AccessibilitySidebarView.js b/front_end/accessibility/AccessibilitySidebarView.js
index 34cfdc9..b35b114 100644
--- a/front_end/accessibility/AccessibilitySidebarView.js
+++ b/front_end/accessibility/AccessibilitySidebarView.js
@@ -96,11 +96,8 @@
   wasShown() {
     super.wasShown();
 
-    this._breadcrumbsSubPane.setNode(this.node());
-    this._breadcrumbsSubPane.setAXNode(this.axNode());
-    this._axNodeSubPane.setNode(this.node());
-    this._axNodeSubPane.setAXNode(this.axNode());
-    this._ariaSubPane.setNode(this.node());
+    // Pull down the latest date for this node.
+    this.doUpdate();
 
     SDK.targetManager.addModelListener(SDK.DOMModel, SDK.DOMModel.Events.AttrModified, this._onAttrChange, this);
     SDK.targetManager.addModelListener(SDK.DOMModel, SDK.DOMModel.Events.AttrRemoved, this._onAttrChange, this);