Allow signin to continue even if sync is disabled by policy.

chrome/browser/ui/webui/ntp/new_tab_page_sync_handler.cc

Index: chrome/browser/ui/webui/ntp/new_tab_page_sync_handler.cc
diff --git a/chrome/browser/ui/webui/ntp/new_tab_page_sync_handler.cc b/chrome/browser/ui/webui/ntp/new_tab_page_sync_handler.cc
index 6022bb9e87971b2c5ea221090095f008d727dfaf..1639456ab7727a0d564b74bfd1efda5697a3aec4 100644
--- a/chrome/browser/ui/webui/ntp/new_tab_page_sync_handler.cc
+++ b/chrome/browser/ui/webui/ntp/new_tab_page_sync_handler.cc
@@ -68,7 +68,6 @@ void NewTabPageSyncHandler::RegisterMessages() {
   sync_service_ = ProfileSyncServiceFactory::GetInstance()->GetForProfile(
       Profile::FromWebUI(web_ui()));
   DCHECK(sync_service_);  // This shouldn't get called by an incognito NTP.
-  DCHECK(!sync_service_->IsManaged());  // And neither if sync is managed.
   sync_service_->AddObserver(this);
 
   web_ui()->RegisterMessageCallback("GetSyncMessage",
@@ -131,7 +130,7 @@ void NewTabPageSyncHandler::HandleSyncLinkClicked(const ListValue* args) {
       chrome::FindBrowserWithWebContents(web_ui()->GetWebContents());
   if (!browser || browser->IsAttemptingToCloseBrowser())
     return;
-  chrome::ShowSyncSetup(browser, SyncPromoUI::SOURCE_NTP_LINK);
+  chrome::ShowBrowserSignin(browser, SyncPromoUI::SOURCE_NTP_LINK);
 
   if (sync_service_->HasSyncSetupCompleted()) {
     string16 user = UTF8ToUTF16(SigninManagerFactory::GetForProfile(