Makes windowmanager draw non-client area

components/mus/ws/window_tree_apptest.cc

Index: components/mus/ws/window_tree_apptest.cc
diff --git a/components/mus/ws/window_tree_apptest.cc b/components/mus/ws/window_tree_apptest.cc
index 4686293715b1bcec8476723390789d2dbbfe2f56..3cc0ca02805e15dac0137ff69ee351bfdec5c9aa 100644
--- a/components/mus/ws/window_tree_apptest.cc
+++ b/components/mus/ws/window_tree_apptest.cc
@@ -330,8 +330,8 @@ class TestWindowTreeClientImpl : public mojom::WindowTreeClient,
                                      new_bounds.Pass());
   }
   void OnClientAreaChanged(uint32_t window_id,
-                           mojo::RectPtr old_client_area,
-                           mojo::RectPtr new_client_area) override {}
+                           mojo::InsetsPtr old_client_area,
+                           mojo::InsetsPtr new_client_area) override {}
   void OnWindowViewportMetricsChanged(ViewportMetricsPtr old_metrics,
                                       ViewportMetricsPtr new_metrics) override {
     // Don't track the metrics as they are available at an indeterministic time