From 718cee012e0b7363549dd95e8467526554ec1e1d Mon Sep 17 00:00:00 2001
From: Kristiyan Kostadinov <crisbeto@users.noreply.github.com>
Date: Wed, 11 Apr 2018 19:31:04 +0200
Subject: [PATCH] refactor(tree): use destroy cleanup logic from base class
 (#10740)

Uses the `ngOnDestroy` logic from the `CdkTreeNode` rather than re-implementing it in the `CdkNestedTreeNode`. This is less prone to errors in the future, if we decide to introduce more cleanup logic inside the base class.
---
 src/cdk/tree/nested-node.ts | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/cdk/tree/nested-node.ts b/src/cdk/tree/nested-node.ts
index 4d61bb2c4d0..781dcb71b73 100644
--- a/src/cdk/tree/nested-node.ts
+++ b/src/cdk/tree/nested-node.ts
@@ -79,13 +79,12 @@ export class CdkNestedTreeNode<T> extends CdkTreeNode<T> implements AfterContent
           this.updateChildrenNodes();
         });
     this.nodeOutlet.changes.pipe(takeUntil(this._destroyed))
-        .subscribe((_) => this.updateChildrenNodes());
+        .subscribe(() => this.updateChildrenNodes());
   }
 
   ngOnDestroy() {
     this._clear();
-    this._destroyed.next();
-    this._destroyed.complete();
+    super.ngOnDestroy();
   }
 
   /** Add children dataNodes to the NodeOutlet */