[CrOS Tether] Create TetherDisconnector, which disconnects from active tethering sessions.

chromeos/components/tether/fake_network_configuration_remover.h

Index: chromeos/components/tether/fake_network_configuration_remover.h
diff --git a/chromeos/components/tether/fake_network_configuration_remover.h b/chromeos/components/tether/fake_network_configuration_remover.h
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index 0000000000000000000000000000000000000000..a87bbc46c2362e4bcad83b05d0a1683eb5765b13
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+++ b/chromeos/components/tether/fake_network_configuration_remover.h
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+// Copyright 2017 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 CHROMEOS_COMPONENTS_TETHER_FAKE_NETWORK_CONFIGURATION_REMOVER_H_
+#define CHROMEOS_COMPONENTS_TETHER_FAKE_NETWORK_CONFIGURATION_REMOVER_H_
+
+#include <string>
+
+#include "base/macros.h"
+#include "chromeos/components/tether/network_configuration_remover.h"
+
+namespace chromeos {
+
+namespace tether {
+
+// Test double for NetworkConfigurationRemover.
+class FakeNetworkConfigurationRemover : public NetworkConfigurationRemover {
+ public:
+  FakeNetworkConfigurationRemover();
+  ~FakeNetworkConfigurationRemover() override;
+
+  std::string last_removed_wifi_network_guid() {
+    return last_removed_wifi_network_guid_;
+  }
+
+  // NetworkConfigurationRemover:
+  void RemoveNetworkConfiguration(
+      const std::string& wifi_network_guid) override;
+
+ private:
+  std::string last_removed_wifi_network_guid_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeNetworkConfigurationRemover);
+};
+
+}  // namespace tether
+
+}  // namespace chromeos
+
+#endif  // CHROMEOS_COMPONENTS_TETHER_FAKE_NETWORK_CONFIGURATION_REMOVER_H_