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

chrome/browser/chromeos/login/startup_utils.cc

Index: chrome/browser/chromeos/login/startup_utils.cc
diff --git a/chrome/browser/chromeos/login/startup_utils.cc b/chrome/browser/chromeos/login/startup_utils.cc
index 153182be65430ed959b81699c3a163ccb1d76a87..012cdae0b2ffa64d13a7fb5b12fa5ddbf8d4748f 100644
--- a/chrome/browser/chromeos/login/startup_utils.cc
+++ b/chrome/browser/chromeos/login/startup_utils.cc
@@ -50,6 +50,7 @@ namespace chromeos {
 // static
 void StartupUtils::RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterBooleanPref(prefs::kOobeComplete, false);
+  registry->RegisterStringPref(prefs::kOobeScreenPending, "");
   registry->RegisterIntegerPref(prefs::kDeviceRegistered, -1);
   registry->RegisterStringPref(prefs::kInitialLocale, "en-US");
 }
@@ -71,9 +72,17 @@ void StartupUtils::MarkEulaAccepted() {
 
 // static
 void StartupUtils::MarkOobeCompleted() {
+  // Forcing the second pref will force this one as well. Even if this one
+  // doesn't end up synced it is only going to eat up a couple of bytes with no
+  // side-effects.
+  g_browser_process->local_state()->ClearPref(prefs::kOobeScreenPending);
   SaveBoolPreferenceForced(prefs::kOobeComplete, true);
 }
 
+void StartupUtils::SaveOobePendingScreen(const std::string& screen) {
+  SaveStringPreferenceForced(prefs::kOobeScreenPending, screen);
+}
+
 // Returns the path to flag file indicating that both parts of OOBE were
 // completed.
 // On chrome device, returns /home/chronos/.oobe_completed.