src/vs/workbench/browser/parts/editor/editorPart.ts/EditorPart/doRestoreGroup
class EditorPart:	private doRestoreGroup(group: IEditorGroupView): void {
		if (this.gridWidget) {
			const viewSize = this.gridWidget.getViewSize(group);
			if (viewSize.width === group.minimumWidth || viewSize.height === group.minimumHeight) {
				this.arrangeGroups(GroupsArrangement.MINIMIZE_OTHERS, group);
			}
		}
	}