Upgrade to 1.0 and switch clients to dom-repeat where needed.

third_party/polymer/v0_8/components/iron-validatable-behavior/iron-validatable-behavior.html

+<!--
+@license
+Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
+This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
+The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+Code distributed by Google as part of the polymer project is also
+subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
+-->
+
+<link rel="import" href="../polymer/polymer.html">
+<link rel="import" href="../iron-meta/iron-meta.html">
+
+<script>
+
+  /**
+   * Use `Polymer.IronValidatableBehavior` to implement an element that validates user input.
+   *
+   * ### Accessiblity
+   *
+   * Changing the `invalid` property, either manually or by calling `validate()` will update the
+   * `aria-invalid` attribute.
+   *
+   * @demo demo/index.html
+   * @polymerBehavior
+   */
+  Polymer.IronValidatableBehavior = {
+
+    properties: {
+
+      /**
+       * Namespace for this validator.
+       */
+      validatorType: {
+        type: String,
+        value: 'validator'
+      },
+
+      /**
+       * Name of the validator to use.
+       */
+      validator: {
+        type: String
+      },
+
+      /**
+       * True if the last call to `validate` is invalid.
+       */
+      invalid: {
+        reflectToAttribute: true,
+        type: Boolean,
+        value: false
+      },
+
+      _validatorMeta: {
+        type: Object
+      }
+
+    },
+
+    observers: [
+      '_invalidChanged(invalid)'
+    ],
+
+    get _validator() {
+      return this._validatorMeta && this._validatorMeta.byKey(this.validator);
+    },
+
+    ready: function() {
+      this._validatorMeta = new Polymer.IronMeta({type: this.validatorType});
+    },
+
+    _invalidChanged: function() {
+      if (this.invalid) {
+        this.setAttribute('aria-invalid', 'true');
+      } else {
+        this.removeAttribute('aria-invalid');
+      }
+    },
+
+    /**
+     * @return {Boolean} True if the validator `validator` exists.
+     */
+    hasValidator: function() {
+      return this._validator != null;
+    },
+
+    /**
+     * @param {Object} values Passed to the validator's `validate()` function.
+     * @return {Boolean} True if `values` is valid.
+     */
+    validate: function(values) {
+      var valid = this._validator && this._validator.validate(values);
+      this.invalid = !valid;
+      return valid;
+    }
+
+  };
+
+</script>