src/vs/workbench/services/views/common/viewContainerModel.ts/ViewContainerModel/setSizes
class ViewContainerModel:	setSizes(newSizes: readonly { id: string; size: number }[]): void {
		for (const { id, size } of newSizes) {
			const { viewDescriptorItem } = this.find(id);
			if (viewDescriptorItem.state.size !== size) {
				viewDescriptorItem.state.size = size;
			}
		}
		this.viewDescriptorsState.updateState(this.allViewDescriptors);
	}