[IndexedDB] Adding transaction and value support to observers

content/browser/indexed_db/indexed_db_callbacks.h

Index: content/browser/indexed_db/indexed_db_callbacks.h
diff --git a/content/browser/indexed_db/indexed_db_callbacks.h b/content/browser/indexed_db/indexed_db_callbacks.h
index c3b564f33c7ca85799c254e21d6f7c1c90e93914..dbf090fa6bbe13296a41e09379002092ad28ed58 100644
--- a/content/browser/indexed_db/indexed_db_callbacks.h
+++ b/content/browser/indexed_db/indexed_db_callbacks.h
@@ -36,6 +36,9 @@ struct IndexedDBValue;
 class CONTENT_EXPORT IndexedDBCallbacks
     : public base::RefCounted<IndexedDBCallbacks> {
  public:
+  // Destructively converts an IndexedDBValue to a Mojo Value.
+  static ::indexed_db::mojom::ValuePtr ConvertValue(IndexedDBValue* value);
+
   IndexedDBCallbacks(
       scoped_refptr<IndexedDBDispatcherHost> dispatcher_host,
       const url::Origin& origin,