Index: content/browser/indexed_db/leveldb/leveldb_iterator.h |
diff --git a/content/browser/indexed_db/leveldb/leveldb_iterator.h b/content/browser/indexed_db/leveldb/leveldb_iterator.h |
index d5efa4bf51951f6218d0cbcb804e282c6397b4d2..fd2b0defc4818273fe807f2bca45915539414d4c 100644 |
--- a/content/browser/indexed_db/leveldb/leveldb_iterator.h |
+++ b/content/browser/indexed_db/leveldb/leveldb_iterator.h |
@@ -21,6 +21,13 @@ class CONTENT_EXPORT LevelDBIterator { |
virtual leveldb::Status Prev() = 0; |
virtual base::StringPiece Key() const = 0; |
virtual base::StringPiece Value() const = 0; |
+ |
+ // Detaches the internal iterator which saves memory at the performance |
+ // expense of reloading and seeking later if the iterator is needed again for |
+ // |Seek*|, |Next|, |Prev|, or |Value|. |
+ // Cannot be called more than once before the iterator is reloaded. |
+ virtual void Detach() {}; |
+ virtual bool IsDetached() const; |
}; |
} // namespace content |