Seed test for SyncUI: sign in successfully with mocks.

chrome/browser/resources/sync_setup_overlay.js

Index: chrome/browser/resources/sync_setup_overlay.js
diff --git a/chrome/browser/resources/sync_setup_overlay.js b/chrome/browser/resources/sync_setup_overlay.js
index 8e3a955ae29d5ba284dfb55c43b003fb1dade555..2304970456250114e89afcbdae29e91031a21428 100644
--- a/chrome/browser/resources/sync_setup_overlay.js
+++ b/chrome/browser/resources/sync_setup_overlay.js
@@ -561,6 +561,33 @@ cr.define('options', function() {
       }
     },
 
+    /**
+     * Get the login email text input DOM element.
+     * @return {DOMElement} The login email text input.
+     * @private
+     */
+    getLoginEmail_: function() {
+      return $('gaia-email');
+    },
+
+    /**
+     * Get the login password text input DOM element.
+     * @return {DOMElement} The login password text input.
+     * @private
+     */
+    getLoginPasswd_: function() {
+      return $('gaia-passwd');
+    },
+
+    /**
+     * Get the sign in button DOM element.
+     * @return {DOMElement} The sign in button.
+     * @private
+     */
+    getSignInButton_: function() {
+      return $('sign-in');
+    },
+
     showAccessCodeRequired_: function() {
       $('password-row').hidden = true;
       $('email-row').hidden = true;
@@ -819,6 +846,20 @@ cr.define('options', function() {
     }
   };
 
+  // These get methods should only be called by the WebUI tests.
+  SyncSetupOverlay.getLoginEmail = function() {
+    return SyncSetupOverlay.getInstance().getLoginEmail_();
+  };
+
+  SyncSetupOverlay.getLoginPasswd = function() {
+    return SyncSetupOverlay.getInstance().getLoginPasswd_();
+  };
+
+  SyncSetupOverlay.getSignInButton = function() {
+    return SyncSetupOverlay.getInstance().getSignInButton_();
+  };
+
+  // These methods are for general consumption.
   SyncSetupOverlay.showErrorUI = function() {
     SyncSetupOverlay.getInstance().showErrorUI_();
   };