Load sync token upon login

chrome/browser/chromeos/login/user_flow.cc

Index: chrome/browser/chromeos/login/user_flow.cc
diff --git a/chrome/browser/chromeos/login/user_flow.cc b/chrome/browser/chromeos/login/user_flow.cc
index 15019c02bdd875381dc4c432a135059aa69f4586..a0cb726e21397ed671bf90154586ddf9a89bccac 100644
--- a/chrome/browser/chromeos/login/user_flow.cc
+++ b/chrome/browser/chromeos/login/user_flow.cc
@@ -2,10 +2,21 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/bind.h"
+#include "base/message_loop.h"
 #include "chrome/browser/chromeos/login/user_flow.h"
+#include "chrome/browser/chromeos/login/user_manager.h"
 
 namespace chromeos {
 
+namespace {
+
+void UnregisterFlow(const std::string& user_id) {
+  UserManager::Get()->ResetUserFlow(user_id);
+}
+
+} // namespace
+
 UserFlow::~UserFlow() {}
 
 DefaultUserFlow::~DefaultUserFlow() {}
@@ -27,7 +38,22 @@ bool DefaultUserFlow::HandlePasswordChangeDetected(LoginDisplayHost* host) {
   return false;
 }
 
-void DefaultUserFlow::LaunchExtraSteps(LoginDisplayHost* host) {
+void DefaultUserFlow::LaunchExtraSteps(Profile* profile,
+                                       LoginDisplayHost* host) {
+}
+
+ExtendedUserFlow::ExtendedUserFlow(const std::string& user_id)
+    : user_id_(user_id) {
+}
+
+ExtendedUserFlow::~ExtendedUserFlow() {
+}
+
+void ExtendedUserFlow::UnregisterFlowSoon() {
+  std::string id_copy(user_id());
+  MessageLoop::current()->PostTask(FROM_HERE,
+      base::Bind(&UnregisterFlow,
+                 id_copy));
 }
 
 }  // namespace chromeos