[ChromeOS] Reset Gaia UI and show error if needed.

chrome/browser/resources/chromeos/login/bubble.js

Index: chrome/browser/resources/chromeos/login/bubble.js
diff --git a/chrome/browser/resources/chromeos/login/bubble.js b/chrome/browser/resources/chromeos/login/bubble.js
index 7b1bf2fab2cbf58c60cd2be401f4afee27fbf6a3..248762317436f3d665c283d2b6c2d96f021d4595 100644
--- a/chrome/browser/resources/chromeos/login/bubble.js
+++ b/chrome/browser/resources/chromeos/login/bubble.js
@@ -33,23 +33,20 @@ cr.define('cr.ui', function() {
 
     /**
      * Shows the bubble for given anchor element.
-     * @param {!HTMLElement} el Anchor element of the bubble.
+     * @param {number} x X position of bubble's reference point.
+     * @param {number} y Y position of bubble's reference point.
      * @param {HTMLElement} content Content to show in bubble.
      * @public
      */
-    showContentForElement: function(el, content) {
+    showContentAt: function(x, y, content) {
       const ARROW_OFFSET = 14;
-      const HORIZONTAL_PADDING = 10;
-      const VERTICAL_PADDING = 5;
 
-      var elementOrigin = Oobe.getOffset(el);
-      var anchorX = elementOrigin.left + HORIZONTAL_PADDING - ARROW_OFFSET;
-      var anchorY = elementOrigin.top + el.offsetHeight + VERTICAL_PADDING;
+      var anchorX = x - ARROW_OFFSET;
+      var anchorY = y;
 
       this.style.left = anchorX + 'px';
       this.style.top = anchorY + 'px';
 
-      this.anchor_ = el;
       this.innerHTML = '';
       this.appendChild(content);
       this.hidden = false;
@@ -59,6 +56,24 @@ cr.define('cr.ui', function() {
     /**
      * Shows the bubble for given anchor element.
      * @param {!HTMLElement} el Anchor element of the bubble.
+     * @param {HTMLElement} content Content to show in bubble.
+     * @public
+     */
+    showContentForElement: function(el, content) {
+      const HORIZONTAL_PADDING = 10;
+      const VERTICAL_PADDING = 5;
+
+      var elementOrigin = Oobe.getOffset(el);
+      var anchorX = elementOrigin.left + HORIZONTAL_PADDING;
+      var anchorY = elementOrigin.top + el.offsetHeight + VERTICAL_PADDING;
+
+      this.anchor_ = el;
+      this.showContentAt(anchorX, anchorY, content);
+    },
+
+    /**
+     * Shows the bubble for given anchor element.
+     * @param {!HTMLElement} el Anchor element of the bubble.
      * @param {string} text Text content to show in bubble.
      * @public
      */