If chrome starts without a network connection, the sync serverconnectionmanag...

chrome/browser/sync/engine/syncapi.cc

Index: chrome/browser/sync/engine/syncapi.cc
===================================================================
--- chrome/browser/sync/engine/syncapi.cc	(revision 29236)
+++ chrome/browser/sync/engine/syncapi.cc	(working copy)
@@ -1154,6 +1154,10 @@
       MarkAndNotifyInitializationComplete();
   }
 
+  // Load the last-known good auth token into the connection manager and send
+  // it off to the AuthWatcher for validation.  The result of the validation
+  // will update the connection manager if necessary.
+  connection_manager()->set_auth_token(auth_token);
   auth_watcher()->AuthenticateWithToken(username, auth_token);
 }