Fixed sync re-activation when the device comes online after offline login.

chrome/browser/chromeos/login/user_manager.h

Index: chrome/browser/chromeos/login/user_manager.h
===================================================================
--- chrome/browser/chromeos/login/user_manager.h	(revision 99948)
+++ chrome/browser/chromeos/login/user_manager.h	(working copy)
@@ -169,6 +169,9 @@
 
   bool user_is_logged_in() const { return user_is_logged_in_; }
 
+  void set_offline_login(bool value) { offline_login_ = value; }
+  bool offline_login() { return offline_login_; }
+
   // Returns true if we're logged in as a Guest.
   bool IsLoggedInAsGuest() const;
 
@@ -213,6 +216,9 @@
   // The logged-in user.
   User logged_in_user_;
 
+  // Current user is logged in offline. Valid only for WebUI login flow.
+  bool offline_login_;
+
   // Cached flag of whether currently logged-in user is owner or not.
   // May be accessed on different threads, requires locking.
   bool current_user_is_owner_;