Remove third_party/polymer from .gitignore

third_party/polymer/v1_0/components/iron-input/iron-input.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-validatable-behavior/iron-validatable-behavior.html">
-
-<script>
-
-/*
-`<iron-input>` adds two-way binding and custom validators using `Polymer.IronValidatorBehavior`
-to `<input>`.
-
-### Two-way binding
-
-By default you can only get notified of changes to an `input`'s `value` due to user input:
-
-    <input value="{{myValue::input}}">
-
-`iron-input` adds the `bind-value` property that mirrors the `value` property, and can be used
-for two-way data binding. `bind-value` will notify if it is changed either by user input or by script.
-
-    <input is="iron-input" bind-value="{{myValue}}">
-
-### Custom validators
-
-You can use custom validators that implement `Polymer.IronValidatorBehavior` with `<iron-input>`.
-
-    <input is="iron-input" validator="my-custom-validator">
-
-### Stopping invalid input
-
-It may be desirable to only allow users to enter certain characters. You can use the
-`prevent-invalid-input` and `allowed-pattern` attributes together to accomplish this. This feature
-is separate from validation, and `allowed-pattern` does not affect how the input is validated.
-
-    <!-- only allow characters that match [0-9] -->
-    <input is="iron-input" prevent-invalid-input allowed-pattern="[0-9]">
-
-@hero hero.svg
-@demo demo/index.html
-*/
-
-  Polymer({
-
-    is: 'iron-input',
-
-    extends: 'input',
-
-    behaviors: [
-      Polymer.IronValidatableBehavior
-    ],
-
-    properties: {
-
-      /**
-       * Use this property instead of `value` for two-way data binding.
-       */
-      bindValue: {
-        observer: '_bindValueChanged',
-        type: String
-      },
-
-      /**
-       * Set to true to prevent the user from entering invalid input. The new input characters are
-       * matched with `allowedPattern` if it is set, otherwise it will use the `pattern` attribute if
-       * set, or the `type` attribute (only supported for `type=number`).
-       */
-      preventInvalidInput: {
-        type: Boolean
-      },
-
-      /**
-       * Regular expression to match valid input characters.
-       */
-      allowedPattern: {
-        type: String
-      },
-
-      _previousValidInput: {
-        type: String,
-        value: ''
-      },
-
-      _patternAlreadyChecked: {
-        type: Boolean,
-        value: false
-      }
-
-    },
-
-    listeners: {
-      'input': '_onInput',
-      'keypress': '_onKeypress'
-    },
-
-    get _patternRegExp() {
-      var pattern;
-      if (this.allowedPattern) {
-        pattern = new RegExp(this.allowedPattern);
-      } else if (this.pattern) {
-        pattern = new RegExp(this.pattern);
-      } else {
-        switch (this.type) {
-          case 'number':
-            pattern = /[0-9.,e-]/;
-            break;
-        }
-      }
-      return pattern;
-    },
-
-    ready: function() {
-      this.bindValue = this.value;
-    },
-
-    _bindValueChanged: function() {
-      if (this.value !== this.bindValue) {
-        this.value = !this.bindValue ? '' : this.bindValue;
-      }
-      // manually notify because we don't want to notify until after setting value
-      this.fire('bind-value-changed', {value: this.bindValue});
-    },
-
-    _onInput: function() {
-      // Need to validate each of the characters pasted if they haven't
-      // been validated inside `_onKeypress` already.
-      if (this.preventInvalidInput && !this._patternAlreadyChecked) {
-        var valid = this._checkPatternValidity();
-        if (!valid) {
-          this.value = this._previousValidInput;
-        }
-      }
-
-      this.bindValue = this.value;
-      this._previousValidInput = this.value;
-      this._patternAlreadyChecked = false;
-    },
-
-    _isPrintable: function(event) {
-      // What a control/printable character is varies wildly based on the browser.
-      // - most control characters (arrows, backspace) do not send a `keypress` event
-      //   in Chrome, but the *do* on Firefox
-      // - in Firefox, when they do send a `keypress` event, control chars have
-      //   a charCode = 0, keyCode = xx (for ex. 40 for down arrow)
-      // - printable characters always send a keypress event.
-      // - in Firefox, printable chars always have a keyCode = 0. In Chrome, the keyCode
-      //   always matches the charCode.
-      // None of this makes any sense.
-
-      // For these keys, ASCII code == browser keycode.
-      var anyNonPrintable =
-        (event.keyCode == 8)   ||  // backspace
-        (event.keyCode == 13)  ||  // enter
-        (event.keyCode == 27);     // escape
-
-      // For these keys, make sure it's a browser keycode and not an ASCII code.
-      var mozNonPrintable =
-        (event.keyCode == 19)  ||  // pause
-        (event.keyCode == 20)  ||  // caps lock
-        (event.keyCode == 45)  ||  // insert
-        (event.keyCode == 46)  ||  // delete
-        (event.keyCode == 144) ||  // num lock
-        (event.keyCode == 145) ||  // scroll lock
-        (event.keyCode > 32 && event.keyCode < 41)   || // page up/down, end, home, arrows
-        (event.keyCode > 111 && event.keyCode < 124); // fn keys
-
-      return !anyNonPrintable && !(event.charCode == 0 && mozNonPrintable);
-    },
-
-    _onKeypress: function(event) {
-      if (!this.preventInvalidInput && this.type !== 'number') {
-        return;
-      }
-      var regexp = this._patternRegExp;
-      if (!regexp) {
-        return;
-      }
-
-      // Handle special keys and backspace
-      if (event.metaKey || event.ctrlKey || event.altKey)
-        return;
-
-      // Check the pattern either here or in `_onInput`, but not in both.
-      this._patternAlreadyChecked = true;
-
-      var thisChar = String.fromCharCode(event.charCode);
-      if (this._isPrintable(event) && !regexp.test(thisChar)) {
-        event.preventDefault();
-      }
-    },
-
-    _checkPatternValidity: function() {
-      var regexp = this._patternRegExp;
-      if (!regexp) {
-        return true;
-      }
-      for (var i = 0; i < this.value.length; i++) {
-        if (!regexp.test(this.value[i])) {
-          return false;
-        }
-      }
-      return true;
-    },
-
-    /**
-     * Returns true if `value` is valid. The validator provided in `validator` will be used first,
-     * then any constraints.
-     * @return {boolean} True if the value is valid.
-     */
-    validate: function() {
-      // Empty, non-required input is valid.
-      if (!this.required && this.value == '') {
-        this.invalid = false;
-        return true;
-      }
-
-      var valid;
-      if (this.hasValidator()) {
-        valid = Polymer.IronValidatableBehavior.validate.call(this, this.value);
-      } else {
-        this.invalid = !this.validity.valid;
-        valid = this.validity.valid;
-      }
-      this.fire('iron-input-validate');
-      return valid;
-    }
-
-  });
-
-  /*
-  The `iron-input-validate` event is fired whenever `validate()` is called.
-  @event iron-input-validate
-  */
-
-</script>