IndexedDB: Recycle cursor objects when calling continue().

content/browser/in_process_webkit/indexed_db_callbacks.cc

Index: content/browser/in_process_webkit/indexed_db_callbacks.cc
diff --git a/content/browser/in_process_webkit/indexed_db_callbacks.cc b/content/browser/in_process_webkit/indexed_db_callbacks.cc
index 01b4b637e69280e9e00f242927f7a8b966002e52..569d56c117718ea1eee98468e3439ab8c9d8c1ad 100644
--- a/content/browser/in_process_webkit/indexed_db_callbacks.cc
+++ b/content/browser/in_process_webkit/indexed_db_callbacks.cc
@@ -41,6 +41,20 @@ void IndexedDBCallbacks<WebKit::WebIDBCursor>::onSuccess(
           response_id(), content::SerializedScriptValue(value)));
 }
 
+void IndexedDBCallbacks<WebKit::WebIDBCursor>::onSuccessCursorContinue() {
+  DCHECK(cursor_id_ != -1);
+  WebKit::WebIDBCursor* idb_cursor = dispatcher_host()->getCursorFromId(
+      cursor_id_);
+

[michaeln, 2011/10/31 18:58:25]

should we be more defensive here...

DCHECK(idb_cursor);
if (!idb_cursor)
  return;

[hans, 2011/11/01 14:57:45]

Yes, let's do this.

+  dispatcher_host()->Send(
+      new IndexedDBMsg_CallbacksSuccessCursorContinue(
+          response_id(),
+          cursor_id_,
+          IndexedDBKey(idb_cursor->key()),
+          IndexedDBKey(idb_cursor->primaryKey()),
+          content::SerializedScriptValue(idb_cursor->value())));
+}
+
 void IndexedDBCallbacks<WebKit::WebIDBKey>::onSuccess(
     const WebKit::WebIDBKey& value) {
   dispatcher_host()->Send(