Small change to doc to trick firebase (#82017)

packages/flutter/lib/src/widgets/framework.dart

@@ -2332,8 +2332,8 @@ abstract class BuildContext {
 ///
 /// {@tool dartpad --template=freeform}
 /// This example shows how to build an off-screen widget tree used to measure
-/// the size of the rendered tree. For some use cases, the simpler [Offstage]
-/// widget may be a better alternative to this approach.
+/// the layout size of the rendered tree. For some use cases, the simpler
+/// [Offstage] widget may be a better alternative to this approach.
 ///
 /// ```dart imports
 /// import 'package:flutter/rendering.dart';