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

chrome/browser/history/history_backend.cc

Index: chrome/browser/history/history_backend.cc
diff --git a/chrome/browser/history/history_backend.cc b/chrome/browser/history/history_backend.cc
index f1ff383c3625d57c03aeac24560a4ca34886d29a..4ca4e0f9b3b1103bcdc0cef71f61714064588729 100644
--- a/chrome/browser/history/history_backend.cc
+++ b/chrome/browser/history/history_backend.cc
@@ -1076,6 +1076,17 @@ void HistoryBackend::GetMostRecentKeywordSearchTerms(
 
 // Downloads -------------------------------------------------------------------
 
+void HistoryBackend::GetNextDownloadId(
+    scoped_refptr<DownloadNextIdRequest> request) {
+  if (request->canceled()) return;
+  if (db_.get()) {
+    request->value = db_->next_download_id();
+  } else {
+    request->value = 0;
+  }
+  request->ForwardResult(DownloadNextIdRequest::TupleType(request->value));
+}
+
 // Get all the download entries from the database.
 void HistoryBackend::QueryDownloads(
     scoped_refptr<DownloadQueryRequest> request) {