Start calculating new combined NetworkChangeNotifier signal

net/base/network_change_notifier_linux.cc

Index: net/base/network_change_notifier_linux.cc
diff --git a/net/base/network_change_notifier_linux.cc b/net/base/network_change_notifier_linux.cc
index fc2b3720f9d61d6a842dc17f991ba646165c8a0b..1a16f04ab4bfca2e1ee3b2ae28f4cb85e7763d10 100644
--- a/net/base/network_change_notifier_linux.cc
+++ b/net/base/network_change_notifier_linux.cc
@@ -69,7 +69,8 @@ NetworkChangeNotifierLinux* NetworkChangeNotifierLinux::Create() {
 }
 
 NetworkChangeNotifierLinux::NetworkChangeNotifierLinux()
-    : notifier_thread_(new Thread()) {
+    : NetworkChangeNotifier(NetworkChangeCalculatorParamsLinux()),
+      notifier_thread_(new Thread()) {
   // We create this notifier thread because the notification implementation
   // needs a MessageLoopForIO, and there's no guarantee that
   // MessageLoop::current() meets that criterion.
@@ -83,6 +84,20 @@ NetworkChangeNotifierLinux::~NetworkChangeNotifierLinux() {
   notifier_thread_->Stop();
 }
 
+// static
+NetworkChangeNotifier::NetworkChangeCalculatorParams
+NetworkChangeNotifierLinux::NetworkChangeCalculatorParamsLinux() {
+  NetworkChangeCalculatorParams params;
+  // Delay values arrived at by simple experimentation and adjusted so as to
+  // produce a single signal when switching between network connections.
+  params.ip_address_offline_delay_ = base::TimeDelta::FromMilliseconds(2000);
+  params.ip_address_online_delay_ = base::TimeDelta::FromMilliseconds(2000);
+  params.connection_type_offline_delay_ =
+      base::TimeDelta::FromMilliseconds(1500);
+  params.connection_type_online_delay_ = base::TimeDelta::FromMilliseconds(500);
+  return params;
+}
+
 NetworkChangeNotifier::ConnectionType
 NetworkChangeNotifierLinux::GetCurrentConnectionType() const {
   return notifier_thread_->GetCurrentConnectionType();