Add IDL and stub implementation for chrome.usersPrivate API.

third_party/closure_compiler/externs/users_private.js

Index: third_party/closure_compiler/externs/users_private.js
diff --git a/third_party/closure_compiler/externs/users_private.js b/third_party/closure_compiler/externs/users_private.js
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index 0000000000000000000000000000000000000000..733ac6e3b2d0e5357450a5652b8ab02cb9d65135
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+++ b/third_party/closure_compiler/externs/users_private.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 Externs generated from namespace: usersPrivate */
+
+/**
+ * @const
+ */
+chrome.usersPrivate = {};
+
+/**
+ * @typedef {{
+ *   email: string,
+ *   isOwner: boolean
+ * }}
+ * @see https://developer.chrome.com/extensions/usersPrivate#type-User
+ */
+var User;
+
+/**
+ * Gets a list of the currently whitelisted users.
+ * @param {function(!Array<User>):void} callback
+ * @see https://developer.chrome.com/extensions/usersPrivate#method-getWhitelistedUsers
+ */
+chrome.usersPrivate.getWhitelistedUsers = function(callback) {};
+
+/**
+ * Adds a new user with the given email to the whitelist. The callback is called
+ * with true if the user was added succesfully, or with false if not (e.g.
+ * because the user was already present, or the current user isn't the owner).
+ * @param {string} email
+ * @param {function(boolean):void} callback
+ * @see https://developer.chrome.com/extensions/usersPrivate#method-addWhitelistedUser
+ */
+chrome.usersPrivate.addWhitelistedUser = function(email, callback) {};
+
+/**
+ * Removes the user with the given email from the whitelist. The callback is
+ * called with true if the user was removed succesfully, or with false if not
+ * (e.g. because the user was not already present, or the current user isn't the
+ * owner).
+ * @param {string} email
+ * @param {function(boolean):void} callback
+ * @see https://developer.chrome.com/extensions/usersPrivate#method-removeWhitelistedUser
+ */
+chrome.usersPrivate.removeWhitelistedUser = function(email, callback) {};
+
+/**
+ * Whether the current user is the owner of the device.
+ * @param {function(boolean):void} callback
+ * @see https://developer.chrome.com/extensions/usersPrivate#method-isCurrentUserOwner
+ */
+chrome.usersPrivate.isCurrentUserOwner = function(callback) {};
+
+/**
+ * Whether the whitelist is managed by enterprise.
+ * @param {function(boolean):void} callback
+ * @see https://developer.chrome.com/extensions/usersPrivate#method-isWhitelistManaged
+ */
+chrome.usersPrivate.isWhitelistManaged = function(callback) {};