Add a password handler to get the list of passwords in md-settings.

chrome/test/data/webui/settings/settings_passwords_section_browsertest.js

Index: chrome/test/data/webui/settings/settings_passwords_section_browsertest.js
diff --git a/chrome/test/data/webui/settings/settings_passwords_section_browsertest.js b/chrome/test/data/webui/settings/settings_passwords_section_browsertest.js
index c6467b22fbc5e9f5721db8d886803ffce7f848a1..17a80c23671acbfd98c8e5129a4643cf22e06e25 100644
--- a/chrome/test/data/webui/settings/settings_passwords_section_browsertest.js
+++ b/chrome/test/data/webui/settings/settings_passwords_section_browsertest.js
@@ -39,13 +39,13 @@ TEST_F('SettingsPasswordSectionBrowserTest', 'uiTests', function() {
       assertEquals(self.browsePreload, document.location.href,
                    'Unexpected URL loaded');
 
-      var passwordList = [{origin: 'anotherwebsite.com',
+      var passwordList = [{shownUrl: 'anotherwebsite.com',
                            username: 'luigi',
                            password: '*******'},
-                          {origin: 'longwebsite.com',
+                          {shownUrl: 'longwebsite.com',
                            username: 'peach',
                            password: '***'},
-                          {origin: 'website.com',
+                          {shownUrl: 'website.com',
                            username: 'mario',
                            password: '*******'}];
 
@@ -62,20 +62,20 @@ TEST_F('SettingsPasswordSectionBrowserTest', 'uiTests', function() {
                      'Failed to pass list of passwords to iron-list');
 
         var list = Polymer.dom(passwordsSection.$.passwordList);
-        assertTrue(!!list, "Failed to get the password list");
+        assertTrue(!!list, 'Failed to get the password list');
         // Skip the first child because it's the template.
         var listChildren = list.children.slice(1);
 
         var validate = function(nodes, passwordList, index) {

[dpapad, 2016/01/20 17:56:07]

Nit: Can you add some type annotation to this function?

[hcarmona, 2016/01/20 23:13:53]

Done.

           assertTrue(!!nodes[index], 'Failed to get nodes[' + index + ']');

[dpapad, 2016/01/20 17:56:07]

Nit (optional): How about

var node = nodes[index];
var passwordData = passwordList[index];
...
// avoids repeating nodes[index] and passwordList[index]

[hcarmona, 2016/01/20 23:13:53]

Done.

-          assertEquals(passwordList[index].origin,
-                       nodes[index].querySelector('#origin').textContent,
-                       'origin mismatch in nodes[' + index + ']');
+          assertEquals(passwordList[index].shownUrl,
+                       nodes[index].querySelector('#shownUrl').textContent,
+                       'shownUrl mismatch in nodes[' + index + ']');
           assertEquals(passwordList[index].username,
                        nodes[index].querySelector('#username').textContent,
                        'username mismatch in nodes[' + index + ']');
           assertEquals(passwordList[index].password,
-                       nodes[index].querySelector('#password').textContent,
+                       nodes[index].querySelector('#password').value,
                        'password mismatch in nodes[' + index + ']');
         };