Mojo C++ bindings: Simplify associated interface API.

mojo/public/cpp/bindings/lib/associated_group_controller.cc

Index: mojo/public/cpp/bindings/lib/associated_group_controller.cc
diff --git a/mojo/public/cpp/bindings/lib/associated_group_controller.cc b/mojo/public/cpp/bindings/lib/associated_group_controller.cc
index 78af40a2a4e5990784fe750165cda021c8cf6da2..f4a9aa2852aa27d55c90bfa322d9d888faa1f0bd 100644
--- a/mojo/public/cpp/bindings/lib/associated_group_controller.cc
+++ b/mojo/public/cpp/bindings/lib/associated_group_controller.cc
@@ -10,18 +10,15 @@ namespace mojo {
 
 AssociatedGroupController::~AssociatedGroupController() {}
 
-std::unique_ptr<AssociatedGroup>
-AssociatedGroupController::CreateAssociatedGroup() {
-  std::unique_ptr<AssociatedGroup> group(new AssociatedGroup);
-  group->controller_ = this;
-  return group;
+ScopedInterfaceEndpointHandle
+AssociatedGroupController::CreateScopedInterfaceEndpointHandle(InterfaceId id) {
+  return ScopedInterfaceEndpointHandle(id, this);
 }
 
-ScopedInterfaceEndpointHandle
-AssociatedGroupController::CreateScopedInterfaceEndpointHandle(
-    InterfaceId id,
-    bool is_local) {
-  return ScopedInterfaceEndpointHandle(id, is_local, this);
+bool AssociatedGroupController::NotifyAssociation(
+    ScopedInterfaceEndpointHandle* handle_to_send,
+    InterfaceId id) {
+  return handle_to_send->NotifyAssociation(id, this);
 }
 
 }  // namespace mojo