De-Client Surface interface

services/view_manager/display_manager.h

Index: services/view_manager/display_manager.h
diff --git a/services/view_manager/display_manager.h b/services/view_manager/display_manager.h
index 6d1807c9aa8ea17c0d17398f49f8fd9332748d3e..fb7a4970c19a0bf41d416cdddcc7cfa48699b210 100644
--- a/services/view_manager/display_manager.h
+++ b/services/view_manager/display_manager.h
@@ -50,7 +50,6 @@ class DisplayManager {
 // DisplayManager implementation that connects to the services necessary to
 // actually display.
 class DefaultDisplayManager : public DisplayManager,
-                              public mojo::SurfaceClient,
                               public mojo::ErrorHandler {
  public:
   DefaultDisplayManager(
@@ -71,10 +70,7 @@ class DefaultDisplayManager : public DisplayManager,
 
   void OnMetricsChanged(mojo::ViewportMetricsPtr metrics);
 
-  // SurfaceClient:
-  void SetIdNamespace(uint32_t id_namespace) override;
-  void ReturnResources(
-      mojo::Array<mojo::ReturnedResourcePtr> resources) override;
+  void SetIdNamespace(uint32_t id_namespace);
 
   // ErrorHandler:
   void OnConnectionError() override;