Fix crash in SyncSetupWizard::IsVisible()

chrome/browser/ui/webui/sync_setup_handler.cc

Index: chrome/browser/ui/webui/sync_setup_handler.cc
diff --git a/chrome/browser/ui/webui/sync_setup_handler.cc b/chrome/browser/ui/webui/sync_setup_handler.cc
index 914f823f745edb3a76a69797f61db8f241a93202..c1bad70264aed3562db447af5e1130fb5bf4e3f5 100644
--- a/chrome/browser/ui/webui/sync_setup_handler.cc
+++ b/chrome/browser/ui/webui/sync_setup_handler.cc
@@ -703,7 +703,9 @@ void SyncSetupHandler::OpenSyncSetup() {
 bool SyncSetupHandler::FocusExistingWizard() {
   Profile* profile = Profile::FromWebUI(web_ui_);
   ProfileSyncService* service = profile->GetProfileSyncService();
-  DCHECK(service);
+  if (!service)

[James Hawkins, 2011/11/17 02:23:53]

When is |service| NULL?

[binji, 2011/11/17 21:02:09]

When using an incognito profile.

+    return false;
+
   // If the wizard is already visible, focus it.
   if (service->get_wizard().IsVisible()) {
     service->get_wizard().Focus();