Implement 3 PIN browser tests

remoting/webapp/browser_test/cancel_pin_browser_test.js

+// 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.
+
+/**
+ * @fileoverview
+ * @suppress {checkTypes}
+ * Browser test for the scenario below:
+ * 1. Attempt to connect.
+ * 2. Hit cancel at the PIN prompt.
+ * 3. Reconnect with the PIN.
+ * 4. Verify that the session is connected.
+ */
+
+'use strict';
+
+/** @constructor */
+browserTest.Cancel_PIN = function() {};
+
+browserTest.Cancel_PIN.prototype.run = function(data) {
+  browserTest.expect(typeof data.pin == 'string');
+
+  var AppMode = remoting.AppMode;
+  browserTest.clickOnControl('this-host-connect');
+  browserTest.onUIMode(AppMode.CLIENT_PIN_PROMPT).then(function() {
+    browserTest.clickOnControl('cancel-pin-entry-button');
+    return browserTest.onUIMode(AppMode.HOME);
+  }).then(function() {
+    browserTest.clickOnControl('this-host-connect');
+    return browserTest.onUIMode(AppMode.CLIENT_PIN_PROMPT);
+  }).then(
+    this.enterPin_.bind(this, data.pin)
+  ).then(function() {
+    // On fulfilled.
+    browserTest.pass();
+  }, function(reason) {
+    // On rejected.
+    browserTest.fail(reason);
+  });
+};
+
+browserTest.Cancel_PIN.prototype.enterPin_ = function(pin) {
+  document.getElementById('pin-entry').value = pin;
+  browserTest.clickOnControl('pin-connect-button');
+  return browserTest.expectMe2MeConnected();
+};