Wire up inset of SetUnderlaySurfaceOffsetAndExtendedHitArea

components/mus/ws/server_window_surface_manager.h

Index: components/mus/ws/server_window_surface_manager.h
diff --git a/components/mus/ws/server_window_surface_manager.h b/components/mus/ws/server_window_surface_manager.h
index b4ae7248a3cc4d8d0c7d5f239708bc76c11b4645..b2d25769b9a0b1b214f5009fd95b744e5df83d1d 100644
--- a/components/mus/ws/server_window_surface_manager.h
+++ b/components/mus/ws/server_window_surface_manager.h
@@ -20,6 +20,7 @@ namespace ws {
 
 class ServerWindow;
 class ServerWindowSurface;
+class ServerWindowSurfaceManagerTestApi;
 
 // ServerWindowSurfaceManager tracks the surfaces associated with a
 // ServerWindow.
@@ -39,8 +40,10 @@ class ServerWindowSurfaceManager {
   ServerWindowSurface* GetDefaultSurface();
   ServerWindowSurface* GetUnderlaySurface();
   ServerWindowSurface* GetSurfaceByType(mojom::SurfaceType type);
+  bool HasSurfaceOfType(mojom::SurfaceType type);
 
  private:
+  friend class ServerWindowSurfaceManagerTestApi;
   friend class ServerWindowSurface;
 
   cc::SurfaceId GenerateId();