Add chrome.screenlockPrivate API functions to handle alternate auth types.

chrome/test/data/extensions/api_test/screenlock_private/auth_type/test.js

Index: chrome/test/data/extensions/api_test/screenlock_private/auth_type/test.js
diff --git a/chrome/test/data/extensions/api_test/screenlock_private/auth_type/test.js b/chrome/test/data/extensions/api_test/screenlock_private/auth_type/test.js
new file mode 100644
index 0000000000000000000000000000000000000000..05c199e70b68b9df52995acbee3f50d3112b49e7
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/screenlock_private/auth_type/test.js
@@ -0,0 +1,36 @@
+// Copyright 2014 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.
+
+var authAttempted = false;
+
+function setAuthType() {
+  chrome.screenlockPrivate.setAuthType('userClick');
+  chrome.screenlockPrivate.getAuthType(function(authType) {
+    chrome.test.assertEq('userClick', authType);
+    chrome.test.sendMessage('attemptClickAuth');
+  });
+}
+
+chrome.screenlockPrivate.onChanged.addListener(function(locked) {
+  if (locked && !authAttempted) {
+    setAuthType();
+  } else if (!locked && authAttempted) {
+    chrome.test.succeed();
+  } else {
+    var action = locked ? "lock" : "unlock";
+    chrome.test.fail('Unexpected ' + action);
+  }
+});
+
+chrome.screenlockPrivate.onAuthAttempted.addListener(function(authType, input) {
+  chrome.test.assertEq('userClick', authType);
+  authAttempted = true;
+  chrome.screenlockPrivate.acceptAuthAttempt(true);
+});
+
+chrome.test.runTests([
+    function testAuthType() {
+      chrome.screenlockPrivate.setLocked(true);
+    }
+]);