[net/dns] Hardcode DnsConfig.timeout to 1 second.

net/dns/dns_config_service.h

Index: net/dns/dns_config_service.h
diff --git a/net/dns/dns_config_service.h b/net/dns/dns_config_service.h
index ed056bac3647312bd8aa1446ae890fff028e5740..b99babe3d0aabbe455580e519df21db993451c94 100644
--- a/net/dns/dns_config_service.h
+++ b/net/dns/dns_config_service.h
@@ -28,6 +28,10 @@ class Value;
 
 namespace net {
 
+// Always use 1 second timeout (followed by binary exponential backoff).
+// TODO(szym): Remove code which reads timeout from system.
+const unsigned kDnsTimeoutSeconds = 1;
+
 // DnsConfig stores configuration of the system resolver.
 struct NET_EXPORT_PRIVATE DnsConfig {
   DnsConfig();