Add timestamp to infobar for stale Previews

chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc

Index: chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc
diff --git a/chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc b/chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc
index c36249a62f1044a5f6b96e42afb0f65e69998c9b..d67c1dd4f2058f462bf546867ab2e50043bf6086 100644
--- a/chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc
+++ b/chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc
@@ -60,7 +60,8 @@ void AddPreviewNavigationToBlackListCallback(
 void OnLoFiResponseReceivedOnUI(content::WebContents* web_contents) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   PreviewsInfoBarDelegate::Create(
-      web_contents, previews::PreviewsType::LOFI, true /* is_data_saver_user */,
+      web_contents, previews::PreviewsType::LOFI,
+      base::Time() /* previews_freshness */, true /* is_data_saver_user */,
       base::Bind(&AddPreviewNavigationToBlackListCallback,
                  web_contents->GetBrowserContext(),
                  web_contents->GetController()