Convert all connect code to use NetworkHandler instead of NetworkLibrary

ash/system/tray/system_tray_delegate.h

Index: ash/system/tray/system_tray_delegate.h
diff --git a/ash/system/tray/system_tray_delegate.h b/ash/system/tray/system_tray_delegate.h
index 45b0c71c8cd56f5b008a2d50f33251e396c50d4d..20d7cb432022d98d52e23f6b79359fcc76288f08 100644
--- a/ash/system/tray/system_tray_delegate.h
+++ b/ash/system/tray/system_tray_delegate.h
@@ -15,6 +15,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "ui/gfx/image/image_skia.h"
+#include "ui/gfx/native_widget_types.h"
 
 namespace base {
 class TimeDelta;
@@ -250,8 +251,11 @@ class SystemTrayDelegate {
   // Shows UI to configure or activate the network specified by |network_id|.
   virtual void ConfigureNetwork(const std::string& network_id) = 0;
 
-  // Sends a connect request for the network specified by |network_id|.
-  virtual void ConnectToNetwork(const std::string& network_id) = 0;
+  // Shows UI to enroll the network specified by |network_id| if appropriate,
+  // otherwise behaves the same as ConfigureNetwork. |parent_window| is used
+  // to parent any configuration UI. If NULL a default window will be used.
+  virtual void EnrollOrConfigureNetwork(const std::string& network_id,
+                                        gfx::NativeWindow parent_window) = 0;
 
   // Shows UI to manage bluetooth devices.
   virtual void ManageBluetoothDevices() = 0;
@@ -262,6 +266,9 @@ class SystemTrayDelegate {
   // Shows UI to unlock a mobile sim.
   virtual void ShowMobileSimDialog() = 0;
 
+  // Shows UI to setup a mobile network.
+  virtual void ShowMobileSetup(const std::string& network_id) = 0;
+
   // Shows UI to connect to an unlisted wifi network.
   virtual void ShowOtherWifi() = 0;