Index: services/ui/public/cpp/tests/test_window_tree.cc |
diff --git a/services/ui/public/cpp/tests/test_window_tree.cc b/services/ui/public/cpp/tests/test_window_tree.cc |
index edf803e930529bbf7752e162ecac1455b95398ca..14ca4ed22154a3ad63f3e02cb3716dd369ab6e66 100644 |
--- a/services/ui/public/cpp/tests/test_window_tree.cc |
+++ b/services/ui/public/cpp/tests/test_window_tree.cc |
@@ -55,8 +55,8 @@ void TestWindowTree::SetClientArea( |
const gfx::Insets& insets, |
mojo::Array<gfx::Rect> additional_client_areas) {} |
-void TestWindowTree::SetHitTestMask(uint32_t window_id, const gfx::Rect& mask) { |
-} |
+void TestWindowTree::SetHitTestMask(uint32_t window_id, |
+ const base::Optional<gfx::Rect>& mask) {} |
void TestWindowTree::SetWindowVisibility(uint32_t change_id, |
uint32_t window_id, |