Remove third_party/polymer from .gitignore

third_party/polymer/v1_0/components/paper-fab/paper-fab.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-icon/iron-icon.html">
-<link rel="import" href="../iron-flex-layout/classes/iron-flex-layout.html">
-<link rel="import" href="../paper-styles/default-theme.html">
-<link rel="import" href="../paper-styles/color.html">
-<link rel="import" href="../paper-material/paper-material.html">
-<link rel="import" href="../paper-ripple/paper-ripple.html">
-<link rel="import" href="../paper-behaviors/paper-button-behavior.html">
-
-<!--
-Material Design: <a href="http://www.google.com/design/spec/components/buttons.html">Button</a>
-
-`paper-fab` is a floating action button. It contains an image placed in the center and
-comes in two sizes: regular size and a smaller size by applying the attribute `mini`. When
-the user touches the button, a ripple effect emanates from the center of the button.
-
-You may import `iron-icons` to use with this element, or provide a URL to a custom icon.
-See `iron-iconset` for more information about how to use a custom icon set.
-
-Example:
-
-    <link href="path/to/iron-icons/iron-icons.html" rel="import">
-
-    <paper-fab icon="add"></paper-fab>
-    <paper-fab mini icon="favorite"></paper-fab>
-    <paper-fab src="star.png"></paper-fab>
-
-
-### Styling
-
-The following custom properties and mixins are available for styling:
-
-Custom property | Description | Default
-----------------|-------------|----------
-`--paper-fab-background` | The background color of the button | `--accent-color`
-`--paper-fab-keyboard-focus-background` | The background color of the button when focused | `--paper-pink-900`
-`--paper-fab-disabled-background` | The background color of the button when it's disabled | `--paper-grey-300`
-`--paper-fab-disabled-text` | The text color of the button when it's disabled | `--paper-grey-500`
-`--paper-fab` | Mixin applied to the button | `{}`
-`--paper-fab-mini` | Mixin applied to a mini button | `{}`
-`--paper-fab-disabled` | Mixin applied to a disabled button | `{}`
-
-@group Paper Elements
-@demo demo/index.html
-
--->
-
-<dom-module id="paper-fab">
-  <style>
-
-    :host {
-      display: inline-block;
-      position: relative;
-      outline: none;
-      -moz-user-select: none;
-      -ms-user-select: none;
-      -webkit-user-select: none;
-      user-select: none;
-      cursor: pointer;
-
-      box-sizing: border-box;
-      min-width: 0;
-      width: 56px;
-      height: 56px;
-      background: var(--paper-fab-background, --accent-color);
-      color: var(--text-primary-color);
-      border-radius: 50%;
-      padding: 16px;
-
-      z-index: 0;
-
-      @apply(--paper-fab);
-    }
-
-    :host([mini]) {
-      width: 40px;
-      height: 40px;
-      padding: 8px;
-
-      @apply(--paper-fab-mini);
-    }
-
-    :host([disabled]) {
-      color: var(--paper-fab-disabled-text, --paper-grey-500);
-      background: var(--paper-fab-disabled-background, --paper-grey-300);
-      @apply(--paper-fab-disabled);
-    }
-
-    paper-material {
-      border-radius: inherit;
-      @apply(--layout-fit);
-      @apply(--layout-vertical);
-      @apply(--layout-center-center);
-    }
-
-    .keyboard-focus {
-      background: var(--paper-fab-keyboard-focus-background, --paper-pink-900);
-    }
-  </style>
-  <template>
-    <paper-ripple></paper-ripple>
-    <paper-material class$="[[_computeContentClass(receivedFocusFromKeyboard)]]" elevation="[[_elevation]]" animated>
-      <iron-icon id="icon" src="[[src]]" icon="[[icon]]"></iron-icon>
-    </paper-material>
-  </template>
-</dom-module>
-<script>
-  Polymer({
-    is: 'paper-fab',
-
-    behaviors: [
-      Polymer.PaperButtonBehavior
-    ],
-
-    properties: {
-      /**
-       * The URL of an image for the icon. If the src property is specified,
-       * the icon property should not be.
-       *
-       * @attribute src
-       * @type string
-       * @default ''
-       */
-      src: {
-        type: String,
-        value: ''
-      },
-
-      /**
-       * Specifies the icon name or index in the set of icons available in
-       * the icon's icon set. If the icon property is specified,
-       * the src property should not be.
-       *
-       * @attribute icon
-       * @type string
-       * @default ''
-       */
-      icon: {
-        type: String,
-        value: ''
-      },
-
-      /**
-       * Set this to true to style this is a "mini" FAB.
-       *
-       * @attribute mini
-       * @type boolean
-       * @default false
-       */
-      mini: {
-        type: Boolean,
-        value: false
-      }
-    },
-
-    _computeContentClass: function(receivedFocusFromKeyboard) {
-      var className = 'content';
-      if (receivedFocusFromKeyboard) {
-        className += ' keyboard-focus';
-      }
-      return className;
-    }
-
-  });
-</script>