Index: cc/layers/scrollbar_layer_impl_base.h |
diff --git a/cc/layers/scrollbar_layer_impl_base.h b/cc/layers/scrollbar_layer_impl_base.h |
index 360ef9708952cd259de20f310afefdea5914d042..f75808e66edd1297507c2ca1265a771e2221bd53 100644 |
--- a/cc/layers/scrollbar_layer_impl_base.h |
+++ b/cc/layers/scrollbar_layer_impl_base.h |
@@ -64,6 +64,9 @@ class CC_EXPORT ScrollbarLayerImplBase : public LayerImpl { |
virtual int ThumbLength() const = 0; |
virtual float TrackLength() const = 0; |
virtual int TrackStart() const = 0; |
+ // Indicates whether the thumb length can be changed without going back to the |
+ // main thread. |
+ virtual bool IsThumbResizable() const = 0; |
private: |
int scroll_layer_id_; |