Port perf.py's _LoginToGoogleAccount to chrome_remote_control

tools/chrome_remote_control/chrome_remote_control/google_credentials_backend_unittest.py

Index: tools/chrome_remote_control/chrome_remote_control/google_credentials_backend_unittest.py
diff --git a/tools/chrome_remote_control/chrome_remote_control/google_credentials_backend_unittest.py b/tools/chrome_remote_control/chrome_remote_control/google_credentials_backend_unittest.py
new file mode 100644
index 0000000000000000000000000000000000000000..ed114a1daa89e5d684880a4f0b012df06c9ccc08
--- /dev/null
+++ b/tools/chrome_remote_control/chrome_remote_control/google_credentials_backend_unittest.py
@@ -0,0 +1,34 @@
+# Copyright (c) 2012 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.
+import unittest
+
+from chrome_remote_control import browser_credentials
+from chrome_remote_control import google_credentials_backend
+from chrome_remote_control import credentials_backend_unittest
+
+class TestGoogleCredentialsBackend(unittest.TestCase):
+  def testGoogleAccountsLogin(self):
+    browser_cred = browser_credentials.BrowserCredentials()
+    gcb = google_credentials_backend.GoogleCredentialsBackend(browser_cred)
+    possible_browser = credentials_backend_unittest.getPossibleBrowser()
+    self.assertIsNotNone(possible_browser) # pylint: disable=E1101
+
+    browser_cred.SetCredentialsConfigFile(
+        credentials_backend_unittest.google_credentials_file)
+    try:
+      config = browser_cred.GetConfig(
+          credentials_backend_unittest.google_credentials)
+    except IOError:
+      self.skipTest( # pylint: disable=E1101
+          'Google Credentials File Not Found: "%s"' %
+                    credentials_backend_unittest.google_credentials_file)
+
+    with possible_browser.Create() as browser:
+      with browser.ConnectToNthTab(0) as tab:
+        username = config['google_username']
+        password = config['google_password']
+
+        gcb.GoogleAccountsLogin(username, password, tab,
+                                config['google_account_url'])
+        credentials_backend_unittest.waitForExist('nav-privacy', tab)