LockManagerAvailable only in secure contexts. interface LockManager {query(): Promise<LockManagerSnapshot>;request(name: string, callback: LockGrantedCallback): Promise<any>;request(name: string,options: LockOptions,callback: LockGrantedCallback,): Promise<any>;}var LockManager: {prototype: LockManager; new (): LockManager; };§Methods§query(): Promise<LockManagerSnapshot>[src]§request(name: string, callback: LockGrantedCallback): Promise<any>[src]§request(name: string,options: LockOptions,callback: LockGrantedCallback,): Promise<any>[src]