Add new UMA stats to get a handle on Downloads UI Usage

chrome/browser/download/download_history.cc

Index: chrome/browser/download/download_history.cc
diff --git a/chrome/browser/download/download_history.cc b/chrome/browser/download/download_history.cc
index 426a4345ff1717053737253bfb607ed3f27efaca..71c6bf054926e7f7af1aee9cb441e709542d61be 100644
--- a/chrome/browser/download/download_history.cc
+++ b/chrome/browser/download/download_history.cc
@@ -111,9 +111,14 @@ void DownloadHistory::UpdateEntry(DownloadItem* download_item) {
   if (!hs)
     return;
 
-  hs->UpdateDownload(download_item->received_bytes(),
-                     download_item->state(),
-                     download_item->db_handle());
+  history::DownloadItemData data;
+  data.received_bytes = download_item->received_bytes();
+  data.state = download_item->state();
+  data.end_time = download_item->end_time();
+  data.opened = download_item->opened();
+  data.db_handle = download_item->db_handle();
+
+  hs->UpdateDownload(data);
 }
 
 void DownloadHistory::UpdateDownloadPath(DownloadItem* download_item,