Add NetworkNotificationView to tray_network.

ash/system/network/tray_network.h

Index: ash/system/network/tray_network.h
diff --git a/ash/system/network/tray_network.h b/ash/system/network/tray_network.h
index a16a3d4ef4571e72c869e6cc031b086843b46c63..0d22b329c75cbc15e6fc25154f4321bc92e4cea4 100644
--- a/ash/system/network/tray_network.h
+++ b/ash/system/network/tray_network.h
@@ -8,6 +8,7 @@
 
 #include "ash/system/network/network_observer.h"
 #include "ash/system/tray/system_tray_item.h"
+#include "base/memory/scoped_ptr.h"
 
 namespace ash {
 namespace internal {
@@ -15,6 +16,9 @@ namespace internal {
 namespace tray {
 class NetworkDefaultView;
 class NetworkDetailedView;
+class NetworkErrors;
+class NetworkErrorView;
+class NetworkNotificationView;
 class NetworkTrayView;
 }
 
@@ -24,22 +28,40 @@ class TrayNetwork : public SystemTrayItem,
   TrayNetwork();
   virtual ~TrayNetwork();
 
- private:
   // Overridden from SystemTrayItem.
   virtual views::View* CreateTrayView(user::LoginStatus status) OVERRIDE;
   virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
   virtual views::View* CreateDetailedView(user::LoginStatus status) OVERRIDE;
+  virtual views::View* CreateNotificationView(
+      user::LoginStatus status) OVERRIDE;
   virtual void DestroyTrayView() OVERRIDE;
   virtual void DestroyDefaultView() OVERRIDE;
   virtual void DestroyDetailedView() OVERRIDE;
+  virtual void DestroyNotificationView() OVERRIDE;
   virtual void UpdateAfterLoginStatusChange(user::LoginStatus status) OVERRIDE;
 
   // Overridden from NetworkObserver.
   virtual void OnNetworkRefresh(const NetworkIconInfo& info) OVERRIDE;
+  virtual void SetNetworkError(NetworkTrayDelegate* delegate,
+                               ErrorType error_type,
+                               const string16& title,
+                               const string16& message,
+                               const string16& link_text) OVERRIDE;
+  virtual void ClearNetworkError(ErrorType error_type) OVERRIDE;
+
+ private:
+  friend class tray::NetworkErrorView;
+  friend class tray::NetworkNotificationView;
+
+  void LinkClicked(ErrorType error_type);
+
+  const tray::NetworkErrors* errors() const { return errors_.get(); }
 
   tray::NetworkTrayView* tray_;
   tray::NetworkDefaultView* default_;
   tray::NetworkDetailedView* detailed_;
+  tray::NetworkNotificationView* notification_;
+  scoped_ptr<tray::NetworkErrors> errors_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayNetwork);
 };