1 files changed, 54 insertions, 0 deletions
diff --git a/chromium/ash/system/chromeos/network/tray_network_state_observer.h b/chromium/ash/system/chromeos/network/tray_network_state_observer.h
new file mode 100644
index 00000000000..fc9faf9d094
--- /dev/null
+++ b/chromium/ash/system/chromeos/network/tray_network_state_observer.h
@@ -0,0 +1,54 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef ASH_SYSTEM_CHROMEOS_NETWORK_TRAY_NETWORK_STATE_OBSERVER_H
+#define ASH_SYSTEM_CHROMEOS_NETWORK_TRAY_NETWORK_STATE_OBSERVER_H
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "chromeos/network/network_state_handler_observer.h"
+
+namespace ash {
+namespace internal {
+
+class TrayNetworkStateObserver : public chromeos::NetworkStateHandlerObserver {
+ public:
+  class Delegate {
+   public:
+    // Called when the network state may have changed. If |list_changed| is
+    // true then the list of networks may have changed.
+    virtual void NetworkStateChanged(bool list_changed) = 0;
+
+    // Called when the properties for |network| may have been updated.
+    virtual void NetworkServiceChanged(
+        const chromeos::NetworkState* network) = 0;
+
+   protected:
+    virtual ~Delegate() {}
+  };
+
+  explicit TrayNetworkStateObserver(Delegate* delegate);
+
+  virtual ~TrayNetworkStateObserver();
+
+  // NetworkStateHandlerObserver overrides.
+  virtual void NetworkManagerChanged() OVERRIDE;
+  virtual void NetworkListChanged() OVERRIDE;
+  virtual void DeviceListChanged() OVERRIDE;
+  virtual void DefaultNetworkChanged(
+      const chromeos::NetworkState* network) OVERRIDE;
+  virtual void NetworkPropertiesUpdated(
+      const chromeos::NetworkState* network) OVERRIDE;
+
+ private:
+  Delegate* delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(TrayNetworkStateObserver);
+};
+
+}  // namespace ash
+}  // namespace internal
+
+#endif  // ASH_SYSTEM_CHROMEOS_NETWORK_TRAY_NETWORK_STATE_OBSERVER_H