sql::MetaTable.next_download_id, DownloadManager::GetNextId()

chrome/browser/download/download_history.h

Index: chrome/browser/download/download_history.h
diff --git a/chrome/browser/download/download_history.h b/chrome/browser/download/download_history.h
index f4b48812137e7d34848e623cb39fb957f81e3e1d..6908f60caf59b5cf44f00768505ee73cc631ab11 100644
--- a/chrome/browser/download/download_history.h
+++ b/chrome/browser/download/download_history.h
@@ -31,6 +31,11 @@ class DownloadHistory {
   explicit DownloadHistory(Profile* profile);
   ~DownloadHistory();
 
+  // Retrieves the next_id counter from the sql meta_table.
+  // Should be much faster than Load so that we may delay downloads until after
+  // this call with minimal performance penalty.
+  void GetNextId(HistoryService::DownloadNextIdCallback* callback);
+
   // Retrieves DownloadCreateInfos saved in the history.
   void Load(HistoryService::DownloadQueryCallback* callback);