Move UI specific implementation from ProfileSyncService to SyncSetupFlowHandler.

chrome/browser/sync/sync_setup_wizard.h

Index: chrome/browser/sync/sync_setup_wizard.h
diff --git a/chrome/browser/sync/sync_setup_wizard.h b/chrome/browser/sync/sync_setup_wizard.h
index a9f3579afaae5a03e6f3f4f877cb6c4e9c259727..7cecc7669d5d015fb9962b6155f076fe0ed80207 100644
--- a/chrome/browser/sync/sync_setup_wizard.h
+++ b/chrome/browser/sync/sync_setup_wizard.h
@@ -67,6 +67,9 @@ class SyncSetupWizard {
   // not visible.
   void Focus();
 
+  // Show the sync setup tab.
+  void ShowSyncSetup();
+
   // Attaches |handler| to the flow contained in |flow_container_|. Returns NULL
   // if the flow does not exist or if an existing handler is already attached to
   // the flow.