Add a password handler to get the list of passwords in md-settings.

third_party/closure_compiler/externs/passwords_private.js

-// Copyright 2015 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
 
+// This file was generated by:
+//   tools/json_schema_compiler/compiler.py.
+// NOTE: The format of types has changed. 'FooType' is now
+//   'chrome.passwordsPrivate.FooType'.
+// Please run the closure compiler before committing changes.
+// See https://code.google.com/p/chromium/wiki/ClosureCompilation.
+
 /** @fileoverview Externs generated from namespace: passwordsPrivate */
 
 /**
  * @const
  */
 chrome.passwordsPrivate = {};
 
 /**
  * @typedef {{
  *   originUrl: string,
  *   username: string
  * }}
  * @see https://developer.chrome.com/extensions/passwordsPrivate#type-LoginPair
  */
-var LoginPair;
+chrome.passwordsPrivate.LoginPair;
 
 /**
  * @typedef {{
- *   loginPair: LoginPair,
+ *   loginPair: !chrome.passwordsPrivate.LoginPair,
  *   numCharactersInPassword: number,
  *   federationText: (string|undefined)
  * }}
  * @see https://developer.chrome.com/extensions/passwordsPrivate#type-PasswordUiEntry
  */
-var PasswordUiEntry;
+chrome.passwordsPrivate.PasswordUiEntry;
 
 /**
  * @typedef {{
- *   loginPair: LoginPair,
+ *   loginPair: !chrome.passwordsPrivate.LoginPair,
  *   plaintextPassword: string
  * }}
  * @see https://developer.chrome.com/extensions/passwordsPrivate#type-PlaintextPasswordEventParameters
  */
-var PlaintextPasswordEventParameters;
+chrome.passwordsPrivate.PlaintextPasswordEventParameters;
 
 /**
  * Removes the saved password corresponding to |loginPair|. If no saved password
  * for this pair exists, this function is a no-op.
- * @param {LoginPair} loginPair The LoginPair corresponding to the entry to
- *     remove.
+ * @param {!chrome.passwordsPrivate.LoginPair} loginPair The LoginPair
+ *     corresponding to the entry to remove.
  * @see https://developer.chrome.com/extensions/passwordsPrivate#method-removeSavedPassword
  */
 chrome.passwordsPrivate.removeSavedPassword = function(loginPair) {};
 
 /**
  * Removes the saved password exception corresponding to |exceptionUrl|. If no
  * exception with this URL exists, this function is a no-op.
  * @param {string} exceptionUrl The URL corresponding to the exception to
  *     remove.
  * @see https://developer.chrome.com/extensions/passwordsPrivate#method-removePasswordException
  */
 chrome.passwordsPrivate.removePasswordException = function(exceptionUrl) {};
 
 /**
  * Returns the plaintext password corresponding to |loginPair|. Note that on
  * some operating systems, this call may result in an OS-level reauthentication.
  * Once the password has been fetched, it will be returned via the
  * onPlaintextPasswordRetrieved event.
- * @param {LoginPair} loginPair The LoginPair corresponding to the entry whose
- *     password     is to be returned.
+ * @param {!chrome.passwordsPrivate.LoginPair} loginPair The LoginPair
+ *     corresponding to the entry whose password     is to be returned.
  * @see https://developer.chrome.com/extensions/passwordsPrivate#method-requestPlaintextPassword
  */
 chrome.passwordsPrivate.requestPlaintextPassword = function(loginPair) {};
 
 /**
  * Fired when the saved passwords list has changed, meaning that an entry has
  * been added or removed. Note that this event fires as soon as a  listener is
  * added.
  * @type {!ChromeEvent}
  * @see https://developer.chrome.com/extensions/passwordsPrivate#event-onSavedPasswordsListChanged
  */
 chrome.passwordsPrivate.onSavedPasswordsListChanged;
 
 /**
  * Fired when the password exceptions list has changed, meaning that an entry
  * has been added or removed. Note that this event fires as soon as a listener
  * is added.
  * @type {!ChromeEvent}
  * @see https://developer.chrome.com/extensions/passwordsPrivate#event-onPasswordExceptionsListChanged
  */
 chrome.passwordsPrivate.onPasswordExceptionsListChanged;
 
 /**
  * Fired when a plaintext password has been fetched in response to a call to
  * chrome.passwordsPrivate.requestPlaintextPassword().
  * @type {!ChromeEvent}
  * @see https://developer.chrome.com/extensions/passwordsPrivate#event-onPlaintextPasswordRetrieved
  */
 chrome.passwordsPrivate.onPlaintextPasswordRetrieved;