DragDrop Autoscroll feature not working with Material Table

Relates to https://github.com/angular/components/pull/16382

#### Reproduction

https://stackblitz.com/edit/angular-qczaca

Steps to reproduce:
1. Try dragging a row to the edge of its container.
2. You can see that Material Table cannot be autoscrolled while a simple container can be... (like the div in the Stackblitz example).

#### Expected Behavior

I can use autoscroll feature with Material Table as well.

#### Actual Behavior

Autoscroll does not work with Material Table.

#### Environment

Angular, CDK/Material:
```
"@angular/animations": "~8.2.0",
"@angular/cdk": "~8.1.2",
"@angular/common": "~8.2.0",
"@angular/compiler": "~8.2.0",
"@angular/core": "~8.2.0",
"@angular/forms": "~8.2.0",
"@angular/material": "^8.1.2",
"@angular/platform-browser": "~8.2.0",
"@angular/platform-browser-dynamic": "~8.2.0",
"@angular/router": "~8.2.0",
"hammerjs": "^2.0.8"
```

```
"@angular-devkit/build-angular": "~0.802.0",
"@angular/cli": "~8.2.0",
"@angular/compiler-cli": "~8.2.0",
"@angular/language-service": "~8.2.0"
```

Empieza ejecutando la reproducción enlazada de StackBlitz y compara el autodesplazamiento al arrastrar en el contenedor simple con el de la Material Table. Lee el pull request relacionado para obtener contexto y, después, sigue el comportamiento específico de la tabla; el trabajo estará terminado cuando arrastrar una fila hasta el borde del contenedor haga que la Material Table se desplace automáticamente como se espera.

Escrito por el modelo de indexación a partir del texto del issue.