src/vs/workbench/services/views/browser/viewDescriptorService.ts/ViewDescriptorService/onDidRegisterViewContainer
class ViewDescriptorService:	private onDidRegisterViewContainer(viewContainer: ViewContainer): void {
		const defaultLocation = this.isGeneratedContainerId(viewContainer.id) ? true : this.getViewContainerLocation(viewContainer) === this.getDefaultViewContainerLocation(viewContainer);
		this.getOrCreateDefaultViewContainerLocationContextKey(viewContainer).set(defaultLocation);
		this.getOrRegisterViewContainerModel(viewContainer);
	}