Revert 98656 - Make a new integer field in sql::MetaTable (a per-profile db) containing a counter...

chrome/browser/history/history_backend.cc

Index: chrome/browser/history/history_backend.cc
===================================================================
--- chrome/browser/history/history_backend.cc	(revision 98659)
+++ chrome/browser/history/history_backend.cc	(working copy)
@@ -1076,17 +1076,6 @@
 
 // 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) {