Revert "Don't use Compatibility Mode till Chrome bug is fixed (#523)" (#528)

This reverts commit b28ddf7.

Bug was [fixed in
Dawn](https://dawn-review.googlesource.com/c/dawn/+/252698) and rolled
into [Chrome 1487302](http://crrev.com/1487302), shipping in today's
Canary.

Author: SenorBlanco

sample/videoUploading/main.ts

@@ -3,7 +3,9 @@ import fullscreenTexturedQuadWGSL from '../../shaders/fullscreenTexturedQuad.wgs
 import sampleExternalTextureWGSL from '../../shaders/sampleExternalTexture.frag.wgsl';
 import { quitIfWebGPUNotAvailable } from '../util';
 
-const adapter = await navigator.gpu?.requestAdapter();
+const adapter = await navigator.gpu?.requestAdapter({
+  featureLevel: 'compatibility',
+});
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);