Mojo C++ bindings: Generate InterfaceHandle<> instead of InterfacePtr<>.

services/ui/view_manager/view_registry.h

Index: services/ui/view_manager/view_registry.h
diff --git a/services/ui/view_manager/view_registry.h b/services/ui/view_manager/view_registry.h
index 3f2b7baf63e95286fd3896cb8a68912fd6779bdd..567d18c64935aeba24f01a4c7ed79a12d400e4c8 100644
--- a/services/ui/view_manager/view_registry.h
+++ b/services/ui/view_manager/view_registry.h
@@ -73,7 +73,7 @@ class ViewRegistry : public mojo::ui::ViewInspector {
   // Destroys |parent_state| if an error occurs.
   void AddChild(ViewState* parent_state,
                 uint32_t child_key,
-                mojo::ui::ViewOwnerPtr child_view_owner);
+                mojo::InterfaceHandle<mojo::ui::ViewOwner> child_view_owner);
 
   // Removes a child.
   // Destroys |parent_state| if an error occurs.
@@ -108,7 +108,7 @@ class ViewRegistry : public mojo::ui::ViewInspector {
   // Destroys |tree_state| if an error occurs.
   void SetRoot(ViewTreeState* tree_state,
                uint32_t root_key,
-               mojo::ui::ViewOwnerPtr root_view_owner);
+               mojo::InterfaceHandle<mojo::ui::ViewOwner> root_view_owner);
 
   // Resets the root of the view tree.
   // Destroys |tree_state| if an error occurs.