Add a pref to track progress of OOBE and resume if needed.

chrome/browser/chromeos/login/wizard_controller.h

Index: chrome/browser/chromeos/login/wizard_controller.h
diff --git a/chrome/browser/chromeos/login/wizard_controller.h b/chrome/browser/chromeos/login/wizard_controller.h
index cdd3c898e99766481a11641b7904e2cf96343c42..1baadadda6c9da5f3403e2167f756b7a4f0b7823 100644
--- a/chrome/browser/chromeos/login/wizard_controller.h
+++ b/chrome/browser/chromeos/login/wizard_controller.h
@@ -271,6 +271,8 @@ class WizardController : public ScreenObserver {
     local_state_for_testing_ = local_state;
   }
 
+  std::string first_screen_name() { return first_screen_name_; }
+
   // Called when network is UP.
   void StartTimezoneResolve();
 
@@ -368,6 +370,7 @@ class WizardController : public ScreenObserver {
   FRIEND_TEST_ALL_PREFIXES(EnrollmentScreenTest, TestCancel);
   FRIEND_TEST_ALL_PREFIXES(WizardControllerFlowTest, Accelerators);
   friend class WizardControllerFlowTest;
+  friend class WizardControllerOobeResumeTest;
   friend class WizardInProcessBrowserTest;
   friend class WizardControllerBrokenLocalStateTest;