Mandoline: Support transforms and clipping of OOPIFs and events

components/mus/surfaces/surfaces_state.cc

Index: components/mus/surfaces/surfaces_state.cc
diff --git a/components/mus/surfaces/surfaces_state.cc b/components/mus/surfaces/surfaces_state.cc
index e3dfeb8d85dcaff9d41126819e0dff3733c8750f..ea203ba66ae60f876fec42f95d18da830a48c5f5 100644
--- a/components/mus/surfaces/surfaces_state.cc
+++ b/components/mus/surfaces/surfaces_state.cc
@@ -6,7 +6,10 @@
 
 namespace mus {
 
-SurfacesState::SurfacesState() : next_id_namespace_(1u) {}
+SurfacesState::SurfacesState()
+    : next_id_namespace_(1u),
+      hit_tester_(&manager_) {
+}
 
 SurfacesState::~SurfacesState() {}