mustash: Show networking items in ash system tray

ash/mus/vpn_delegate_mus.h

Index: ash/mus/vpn_delegate_mus.h
diff --git a/ash/mus/vpn_delegate_mus.h b/ash/mus/vpn_delegate_mus.h
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+++ b/ash/mus/vpn_delegate_mus.h
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+// Copyright 2016 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_MUS_VPN_DELEGATE_MUS_H_
+#define ASH_MUS_VPN_DELEGATE_MUS_H_
+
+#include "ash/common/system/chromeos/network/vpn_delegate.h"
+#include "base/macros.h"
+
+namespace ash {
+
+// VPN delegate for mustash. Fetches VPN data from browser process over mojo.
+class VPNDelegateMus : public VPNDelegate {
+ public:
+  VPNDelegateMus();
+  ~VPNDelegateMus() override;
+
+ private:
+  // VPNDelegate:
+  bool HaveThirdPartyVPNProviders() const override;
+  const std::vector<VPNProvider>& GetVPNProviders() const override;
+  void ShowAddPage(const VPNProvider::Key& key) override;
+
+  // GetVPNProviders returns a reference to this list.
+  std::vector<VPNProvider> providers_;
+
+  DISALLOW_COPY_AND_ASSIGN(VPNDelegateMus);
+};
+
+}  // namespace ash
+
+#endif  // ASH_MUS_VPN_DELEGATE_MUS_H_