Display material design policies grouped by tags.

chrome/browser/resources/md_policy/policy_group.js

Index: chrome/browser/resources/md_policy/policy_group.js
diff --git a/chrome/browser/resources/md_policy/policy_group.js b/chrome/browser/resources/md_policy/policy_group.js
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+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * @fileoverview
+ * 'policy-group' is an MD element, that contains a description of a group
+ * and all policies that are tagged with the groups name. Policies with multiple
+ * tags will appear in multiple groups.
+ *
+ * Example:
+ *
+ *    <policy-group></policy-group>
+ *
+ *   By inserting an element as created with
+ *
+ *   new PolicyGroup('Privacy and Security')
+ *
+ *   into a document's DOM  would render a paper card with the title 'Privacy
+ *   and Security'. New Policies are added with |addPolicy|.
+ *
+ * @group Chrome Policy Elements
+ * @element policy-group
+ */
+PolicyGroup = Polymer({
+  is: 'policy-group',
+
+  properties: {
+    /** ID used as title for the group card. */
+    riskTag: {
+      type: String,
+      reflectToAttribute: true,
+      readOnly: true,
+      notify: false
+    }
+  },
+
+  /**
+   * @override
+   * @param {string} riskTag String ID used as title for the group card.
+   */
+  factoryImpl: function(riskTag) {
+    this._setRiskTag(riskTag);
+  },
+
+  /**
+   * Used in HMTL file to translate displayed string.
+   * @param {string} key The key for the i18n.
+   * @return {string} i18n of |key|.
+   */
+  translate: function(key) {
+    return loadTimeData.getString(key);
+  },
+
+  /**
+   * Creates a new DOM element for the given policy.
+   * @param {string} policy Name of the policy.
+   */
+  addPolicy: function(policy) {
+    // TODO(fhorschig): Create policy paper-items with possibility to (un)fold.
+    var node = document.createElement('p');
+    node.textContent = policy;
+    this.$.content.appendChild(node);
+  }
+});