Index: services/ui/public/cpp/tests/test_window_tree.h |
diff --git a/services/ui/public/cpp/tests/test_window_tree.h b/services/ui/public/cpp/tests/test_window_tree.h |
index 8506b14ffb0f1dd0396338f5170825270a091afc..d1f238dfbb5eb40c0d6d2b92d569e0b53c69303a 100644 |
--- a/services/ui/public/cpp/tests/test_window_tree.h |
+++ b/services/ui/public/cpp/tests/test_window_tree.h |
@@ -46,7 +46,8 @@ class TestWindowTree : public mojom::WindowTree { |
void SetClientArea(uint32_t window_id, |
const gfx::Insets& insets, |
mojo::Array<gfx::Rect> additional_client_areas) override; |
- void SetHitTestMask(uint32_t window_id, const gfx::Rect& mask) override; |
+ void SetHitTestMask(uint32_t window_id, |
+ const base::Optional<gfx::Rect>& mask) override; |
void SetWindowVisibility(uint32_t change_id, |
uint32_t window_id, |
bool visible) override; |