src/vs/workbench/contrib/userDataSync/browser/userDataSyncMergesView.ts/UserDataSyncMergesViewPane/apply
class UserDataSyncMergesViewPane:	private async apply(): Promise<void> {
		this.closeAll();
		this.syncButton.label = localize('turning on', "Turning on...");
		this.syncButton.enabled = false;
		this.cancelButton.enabled = false;
		try {
			await this.withProgress(async () => this.userDataSyncPreview.apply());
		} catch (error) {
			this.syncButton.enabled = false;
			this.cancelButton.enabled = true;
		}
	}