Move UI specific implementation from ProfileSyncService to SyncSetupFlowHandler.

chrome/browser/sync/sync_setup_flow.cc

Index: chrome/browser/sync/sync_setup_flow.cc
diff --git a/chrome/browser/sync/sync_setup_flow.cc b/chrome/browser/sync/sync_setup_flow.cc
index e26e7a4d692e1e2a52c96803e52c5e837b712892..61c1fb54e8dec839847ea5b5e696a2e98032bb3c 100644
--- a/chrome/browser/sync/sync_setup_flow.cc
+++ b/chrome/browser/sync/sync_setup_flow.cc
@@ -206,6 +206,10 @@ void SyncSetupFlow::Focus() {
     flow_handler_->Focus();
 }
 
+void SyncSetupFlow::ShowSyncSetup() {
+  flow_handler_->ShowSyncSetup();
+}
+
 // A callback to notify the delegate that the dialog closed.
 void SyncSetupFlow::OnDialogClosed(const std::string& json_retval) {
   DCHECK(json_retval.empty());