export interface ChromeLaunchOptions {
    userDataDir: string;
    profileDirectory?: string;
    port?: number;
    headless?: boolean;
    chromeArgs?: string[];
    executablePath?: string;
    readyTimeoutMs?: number;
    launchAttempts?: number;
    signal?: AbortSignal;
}
export interface ChromeProcess {
    readonly pid: number | undefined;
    readonly port: number;
    readonly browserUrl: string;
    readonly userDataDir: string;
    readonly exited: boolean;
    waitForExit(): Promise<number | null>;
    shutdown(graceMs?: number): Promise<void>;
}
export declare function chromeExecutableCandidates(): string[];
export declare function findChromeExecutable(executablePath?: string): string;
export declare function findManagedChromePids(psOutput: string, userDataDir: string, keepPid?: number): number[];
export declare function allocateEphemeralPort(): Promise<number>;
export declare function buildChromeArgs(options: {
    userDataDir: string;
    profileDirectory?: string;
    port?: number;
    headless?: boolean;
    chromeArgs?: string[];
}): string[];
export declare class DevToolsReadyTimeoutError extends Error {
    constructor(browserUrl: string, timeoutMs: number, lastError: unknown);
}
export declare function waitForDevToolsEndpoint(port: number, options?: {
    timeoutMs?: number;
    fetchImpl?: typeof fetch;
    signal?: AbortSignal;
}): Promise<{
    browserUrl: string;
    webSocketDebuggerUrl: string;
}>;
export declare function launchChrome(options: ChromeLaunchOptions): Promise<ChromeProcess>;
export declare function buildFrontProcessScript(pid: number): string;
export declare function frontProcessByPid(pid: number | undefined, runner?: (cmd: string, args: string[]) => void): boolean;
export declare function buildFocusWindowScript(markerUrl: string): string;
export declare function launchSetupBrowser(options: {
    userDataDir: string;
    profileDirectory?: string;
    executablePath?: string;
    chromeArgs?: string[];
    signal?: AbortSignal;
}): Promise<number | null>;
//# sourceMappingURL=chrome-launcher.d.ts.map