Notify user that Chrome is already synced if promo banner "sync me" link is c...

chrome/browser/dom_ui/ntp_resource_cache.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/dom_ui/ntp_resource_cache.h"
 
 #include "app/animation.h"
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "app/theme_provider.h"
@@ skipping 331 matching lines @@
       l10n_util::GetString(IDS_NEW_TAB_SHOW_HIDE_BOOKMARK_SYNC));
   localized_strings.SetString(L"promonew",
       l10n_util::GetString(IDS_NTP_PROMOTION_NEW));
   std::wstring extensionLink = ASCIIToWide(
       google_util::AppendGoogleLocaleParam(
           GURL(extension_urls::kGalleryBrowsePrefix)).spec());
   localized_strings.SetString(L"promomessage",
       l10n_util::GetStringF(IDS_NTP_PROMO_MESSAGE,
           l10n_util::GetString(IDS_PRODUCT_NAME), extensionLink));
   localized_strings.SetString(L"extensionslink", extensionLink);
+  localized_strings.SetString(L"close", l10n_util::GetString(IDS_CLOSE));
 
   // Don't initiate the sync related message passing with the page if the sync
   // code is not present.
   if (profile_->GetProfileSyncService())
     localized_strings.SetString(L"syncispresent", "true");
   else
     localized_strings.SetString(L"syncispresent", "false");
 
   ChromeURLDataManager::DataSource::SetFontAndTextDirection(&localized_strings);
 
@@ skipping 179 matching lines @@
   // Create the string from our template and the replacements.
   const std::string css_string = ReplaceStringPlaceholders(
       new_tab_theme_css, subst, NULL);
   std::string full_css = ReplaceStringPlaceholders(css_string, subst2, NULL);
 
   new_tab_css_ = new RefCountedBytes;
   new_tab_css_->data.resize(full_css.size());
   std::copy(full_css.begin(), full_css.end(),
             new_tab_css_->data.begin());
 }