chore: remove FakeViewportRuler (#9386)

Now that all tests have been moved away from the `FakeViewportRuler`, we can safely get rid of it. In general we should avoid stubbing out the window dimensions, because it can be unreliable and it doesn't work well when something is positioned using `bottom` and `right`.

src/cdk/testing/fake-viewport-ruler.ts

@@ -1,24 +0,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-
-/** @docs-private */
-export class FakeViewportRuler {
-  getViewportRect() {
-    return {
-      left: 0, top: 0, width: 1014, height: 686, bottom: 686, right: 1014
-    };
-  }
-
-  getViewportSize() {
-    return {width: 1014, height: 686};
-  }
-
-  getViewportScrollPosition() {
-    return {top: 0, left: 0};
-  }
-}

src/cdk/testing/index.ts

@@ -6,6 +6,4 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-
-
 export * from './public-api';

src/cdk/testing/public-api.ts

@@ -10,5 +10,4 @@ export * from './dispatch-events';
 export * from './event-objects';
 export * from './type-in-element';
 export * from './wrapped-error-message';
-export * from './fake-viewport-ruler';
 export * from './mock-ng-zone';

src/lib/button/button.spec.ts

@@ -1,8 +1,6 @@
 import {async, ComponentFixture, TestBed} from '@angular/core/testing';
 import {Component, DebugElement} from '@angular/core';
 import {By} from '@angular/platform-browser';
-import {ViewportRuler} from '@angular/cdk/scrolling';
-import {FakeViewportRuler} from '@angular/cdk/testing';
 import {MatButtonModule} from './index';
 import {MatRipple} from '@angular/material/core';
 
@@ -13,9 +11,6 @@ describe('MatButton', () => {
     TestBed.configureTestingModule({
       imports: [MatButtonModule],
       declarations: [TestApp],
-      providers: [
-        {provide: ViewportRuler, useClass: FakeViewportRuler},
-      ]
     });
 
     TestBed.compileComponents();

src/lib/radio/radio.spec.ts

@@ -2,8 +2,7 @@ import {async, ComponentFixture, fakeAsync, TestBed, tick} from '@angular/core/t
 import {FormControl, FormsModule, NgModel, ReactiveFormsModule} from '@angular/forms';
 import {Component, DebugElement} from '@angular/core';
 import {By} from '@angular/platform-browser';
-import {ViewportRuler} from '@angular/cdk/scrolling';
-import {dispatchFakeEvent, FakeViewportRuler} from '@angular/cdk/testing';
+import {dispatchFakeEvent} from '@angular/cdk/testing';
 import {RIPPLE_FADE_IN_DURATION, RIPPLE_FADE_OUT_DURATION} from '@angular/material/core';
 import {MatRadioButton, MatRadioChange, MatRadioGroup, MatRadioModule} from './index';
 
@@ -20,9 +19,6 @@ describe('MatRadio', () => {
         StandaloneRadioButtons,
         InterleavedRadioGroup,
         TranscludingWrapper
-      ],
-      providers: [
-        {provide: ViewportRuler, useClass: FakeViewportRuler}
       ]
     });