Create a RegisterViewAssociate method in ViewManager

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 9550e2953279887c9e9033cd00397a450249c57e..ccea42055b6c174f9fc11b89c0b8cff69ba09dca 100644
--- a/services/ui/view_manager/view_registry.h
+++ b/services/ui/view_manager/view_registry.h
@@ -54,6 +54,12 @@ class ViewRegistry : public mojo::ui::ViewInspector {
       mojo::ui::ViewTreeListenerPtr view_tree_listener,
       const mojo::String& label);
 
+  void RegisterViewAssociate(
+      mojo::ui::ViewInspector* view_inspector,
+      mojo::ui::ViewAssociatePtr view_associate,
+      const std::string& url,
+      const AssociateConnectionErrorCallback& connection_error_callback);
+
   // VIEW STUB REQUESTS
 
   void OnViewResolved(ViewStub* view_stub, mojo::ui::ViewTokenPtr view_token);