From dd9a5fd6feec9c62701320545df2ee2f84c978ed Mon Sep 17 00:00:00 2001
From: crisbeto <crisbeto@abv.bg>
Date: Thu, 6 Jul 2017 21:31:47 +0200
Subject: [PATCH] chore(tooltip): switch to OnPush change detection

Switches `md-tooltip` to `OnPush` change detection.

Relates to #5035.
---
 src/lib/tooltip/tooltip.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/lib/tooltip/tooltip.ts b/src/lib/tooltip/tooltip.ts
index 261b60a381b4..961e68e204cf 100644
--- a/src/lib/tooltip/tooltip.ts
+++ b/src/lib/tooltip/tooltip.ts
@@ -17,6 +17,7 @@ import {
   OnDestroy,
   Renderer2,
   ChangeDetectorRef,
+  ChangeDetectionStrategy,
   ViewEncapsulation,
 } from '@angular/core';
 import {
@@ -368,6 +369,7 @@ export type TooltipVisibility = 'initial' | 'visible' | 'hidden';
   templateUrl: 'tooltip.html',
   styleUrls: ['tooltip.css'],
   encapsulation: ViewEncapsulation.None,
+  changeDetection: ChangeDetectionStrategy.OnPush,
   animations: [
     trigger('state', [
       state('void', style({transform: 'scale(0)'})),