Retrieve response header information. If the response length is not known set |response_length| to -1 and ReadResponse() will be called until it returns false. If the response length is known set |response_length| to a positive value and ReadResponse() will be called until it returns false or the specified number of bytes have been read. Use the |response| object to set the mime type, http status code and other optional header values. To redirect the request to a new URL set |redirectUrl| to the new URL.

protected abstract void GetResponseHeaders(
	CefResponse response,
	out long responseLength,
	out string redirectUrl
)

protected abstract void GetResponseHeaders(
	CefResponse response,
	out long responseLength,
	out string redirectUrl
)