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..c0cb5aac92d7dd5941b690bf458e52b371f2e7a2 100644
--- a/chrome/browser/download/download_history.h
+++ b/chrome/browser/download/download_history.h
@@ -31,6 +31,10 @@ class DownloadHistory {
   explicit DownloadHistory(Profile* profile);
   ~DownloadHistory();
 
+  // Retrieves the next_id counter from the sql meta_table.
+  // Should be much faster than Load; downloads cannot happen until after this.

[Randy Smith (Not in Mondays), 2011/07/28 21:03:16]

nit: This comment is inaccurate for this CL, though should be accurate in a
future CL.  Maybe "so that we may delay downloads after this call with minimal
performance penalty"?

[benjhayden, 2011/08/03 17:44:46]

Done.

+  void GetNextId(HistoryService::DownloadNextIdCallback* callback);
+
   // Retrieves DownloadCreateInfos saved in the history.
   void Load(HistoryService::DownloadQueryCallback* callback);