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

third_party/polymer/v0_8/components/paper-input/paper-input-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">
 
-<!--
-Use `Polymer.PaperInputBehavior` to implement your own `<paper-input>`.
--->
-
 <script>
 
+  /**
+   * Use `Polymer.PaperInputBehavior` to implement inputs with `<paper-input-container>`. This
+   * behavior is implemented by `<paper-input>`. It exposes a number of properties from
+   * `<paper-input-container>` and `<input is="iron-input">` and they should be bound in your
+   * template.
+   *
+   * The input element can be accessed by the `inputElement` property if you need to access
+   * properties or methods that are not exposed.
+   * @polymerBehavior
+   */
   Polymer.PaperInputBehavior = {
 
     properties: {
 
       /**
-       * The label for this input.
+       * The label for this input. Bind this to `<paper-input-container>`'s `label` property.
        */
       label: {
         type: String
       },
 
       /**
-       * The value for this input.
+       * The value for this input. Bind this to the `<input is="iron-input">`'s `bindValue`
+       * property, or the value property of your input that is `notify:true`.
        */
       value: {
         notify: true,
         type: String
       },
 
       /**
-       * Set to true to disable this input.
+       * Set to true to disable this input. Bind this to both the `<paper-input-container>`'s
+       * and the input's `disabled` property.
        */
       disabled: {
         type: Boolean,
         value: false
       },
 
       /**
-       * Set to true to prevent the user from entering invalid input.
+       * Returns true if the value is invalid. Bind this to both the `<paper-input-container>`'s
+       * and the input's `invalid` property.
+       */
+      invalid: {
+        type: Boolean,
+        value: false
+      },
+
+      /**
+       * Set to true to prevent the user from entering invalid input. Bind this to the
+       * `<input is="iron-input">`'s `preventInvalidInput` property.
        */
       preventInvalidInput: {
         type: Boolean
       },
 
       /**
-       * The type of the input. The supported types are `text`, `number` and `password`.
+       * Set this to specify the pattern allowed by `preventInvalidInput`. Bind this to the
+       * `<input is="iron-input">`'s `allowedPattern` property.
+       */
+      allowedPattern: {
+        type: String
+      },
+
+      /**
+       * The type of the input. The supported types are `text`, `number` and `password`. Bind this
+       * to the `<input is="iron-input">`'s `type` property.
        */
       type: {
         type: String
       },
 
       /**
-       * A pattern to validate the `input` with.
+       * A pattern to validate the `input` with. Bind this to the `<input is="iron-input">`'s
+       * `pattern` property.
        */
       pattern: {
         type: String
       },
 
       /**
-       * Set to true to mark the input as required.
+       * Set to true to mark the input as required. Bind this to the `<input is="iron-input">`'s
+       * `required` property.
        */
       required: {
         type: Boolean,
         value: false
       },
 
       /**
-       * The maximum length of the input value.
+       * The maximum length of the input value. Bind this to the `<input is="iron-input">`'s
+       * `maxlength` property.
        */
       maxlength: {
         type: Number
       },
 
       /**
-       * The error message to display when the input is invalid.
+       * The error message to display when the input is invalid. Bind this to the
+       * `<paper-input-error>`'s content, if using.
        */
       errorMessage: {
         type: String
       },
 
       /**
        * Set to true to show a character counter.
        */
       charCounter: {
         type: Boolean,
         value: false
       },
 
       /**
-       * Set to true to disable the floating label.
+       * Set to true to disable the floating label. Bind this to the `<paper-input-container>`'s
+       * `noLabelFloat` property.
        */
       noLabelFloat: {
         type: Boolean,
         value: false
       },
 
       /**
-       * Set to true to auto-validate the input value.
+       * Set to true to always float the label. Bind this to the `<paper-input-container>`'s
+       * `alwaysFloatLabel` property.
+       */
+      alwaysFloatLabel: {
+        type: Boolean,
+        value: false
+      },
+
+      /**
+       * Set to true to auto-validate the input value. Bind this to the `<paper-input-container>`'s
+       * `autoValidate` property.
        */
       autoValidate: {
         type: Boolean,
         value: false
+      },
+
+      /**
+       * Name of the validator to use. Bind this to the `<input is="iron-input">`'s `validator`
+       * property.
+       */
+      validator: {
+        type: String
+      },
+
+      // HTMLInputElement attributes for binding if needed
+
+      /**
+       * Bind this to the `<input is="iron-input">`'s `autocomplete` property.
+       */
+      autocomplete: {
+        type: String,
+        value: 'off'
+      },
+
+      /**
+       * Bind this to the `<input is="iron-input">`'s `autofocus` property.
+       */
+      autofocus: {
+        type: Boolean
+      },
+
+      /**
+       * Bind this to the `<input is="iron-input">`'s `inputmode` property.
+       */
+      inputmode: {
+        type: String
+      },
+
+      /**
+       * Bind this to the `<input is="iron-input">`'s `minlength` property.
+       */
+      minlength: {
+        type: Number
+      },
+
+      /**
+       * Bind this to the `<input is="iron-input">`'s `name` property.
+       */
+      name: {
+        type: String
+      },
+
+      /**
+       * A placeholder string in addition to the label. If this is set, the label will always float.
+       */
+      placeholder: {
+        type: String
+      },
+
+      /**
+       * Bind this to the `<input is="iron-input">`'s `readonly` property.
+       */
+      readonly: {
+        type: Boolean,
+        value: false
+      },
+
+      /**
+       * Bind this to the `<input is="iron-input">`'s `size` property.
+       */
+      size: {
+        type: Number
+      },
+
+      _ariaDescribedBy: {
+        type: String,
+        value: ''
       }
 
     },
 
+    listeners: {
+      'addon-attached': '_onAddonAttached'
+    },
+
     /**
      * Returns a reference to the input element.
      */
     get inputElement() {
       return this.$.input;
+    },
+
+    attached: function() {
+      this._updateAriaLabelledBy();
+    },
+
+    _appendStringWithSpace: function(str, more) {
+      if (str) {
+        str = str + ' ' + more;
+      } else {
+        str = more;
+      }
+      return str;
+    },
+
+    _onAddonAttached: function(event) {
+      var target = event.path ? event.path[0] : event.target;
+      if (target.id) {
+        this._ariaDescribedBy = this._appendStringWithSpace(this._ariaDescribedBy, target.id);
+      } else {
+        var id = 'paper-input-add-on-' + Math.floor((Math.random() * 100000));
+        target.id = id;
+        this._ariaDescribedBy = this._appendStringWithSpace(this._ariaDescribedBy, id);
+      }
+    },
+
+    /**
+     * Validates the input element and sets an error style if needed.
+     */
+     validate: function () {
+       return this.inputElement.validate();
+     },
+
+    _computeAlwaysFloatLabel: function(alwaysFloatLabel, placeholder) {
+      return placeholder || alwaysFloatLabel;
+    },
+
+    _updateAriaLabelledBy: function() {
+      var label = Polymer.dom(this.root).querySelector('label');
+      if (!label) {
+        this._ariaLabelledBy = '';
+        return;
+      }
+      var labelledBy;
+      if (label.id) {
+        labelledBy = label.id;
+      } else {
+        labelledBy = 'paper-input-label-' + new Date().getUTCMilliseconds();
+        label.id = labelledBy;
+      }
+      this._ariaLabelledBy = labelledBy;
     }
 
   };
 
 </script>