Port perf.py's _LoginToGoogleAccount to chrome_remote_control

tools/chrome_remote_control/chrome_remote_control/page_runner.py

Index: tools/chrome_remote_control/chrome_remote_control/page_runner.py
diff --git a/tools/chrome_remote_control/chrome_remote_control/page_runner.py b/tools/chrome_remote_control/chrome_remote_control/page_runner.py
index a3344144d0432a76e6d3b23d3398ff58a2cf6b47..8b7498da5d016e06839dbdcefef2dc58f42993b6 100644
--- a/tools/chrome_remote_control/chrome_remote_control/page_runner.py
+++ b/tools/chrome_remote_control/chrome_remote_control/page_runner.py
@@ -27,6 +27,7 @@ class PageRunner(object):
 
   def Run(self, options, possible_browser, test, results):
     with possible_browser.Create() as browser:
+      browser.SetCredentialsConfigFile(self.page_set.credentials_path)
       with browser.ConnectToNthTab(0) as tab:
         for page in self.page_set:
           self._RunPage(options, page, tab, test, results)
@@ -41,7 +42,7 @@ class PageRunner(object):
                     page.url, traceback.format_exc())
       raise
     finally:
-      self.CleanUpPage()
+      self.CleanUpPage(page, tab)
 
     try:
       test.Run(options, page, tab, results)
@@ -58,7 +59,7 @@ class PageRunner(object):
                     page.url, traceback.format_exc())
       raise
     finally:
-      self.CleanUpPage()
+      self.CleanUpPage(page, tab)
 
   def Close(self):
     if self._server:
@@ -78,6 +79,9 @@ class PageRunner(object):
         self._server = tab.browser.CreateTemporaryHTTPServer(dirname)
       page.url = self._server.UrlOf(filename)
 
+    if page.credentials:
+      tab.LoginNeeded(page.credentials)
+
     tab.page.Navigate(page.url)
     # TODO(dtu): Detect HTTP redirects.
     if page.wait_time_after_navigate:
@@ -85,5 +89,6 @@ class PageRunner(object):
       time.sleep(page.wait_time_after_navigate)
     tab.WaitForDocumentReadyStateToBeInteractiveOrBetter()
 
-  def CleanUpPage(self):
-    pass
+  def CleanUpPage(self, page, tab): # pylint: disable=R0201
+    if page.credentials:
+      tab.LoginNoLongerNeeded(page.credentials)