Implement network performance simulation for remoting perf tests.

remoting/test/fake_network_manager.h

Index: remoting/test/fake_network_manager.h
diff --git a/remoting/test/fake_network_manager.h b/remoting/test/fake_network_manager.h
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+++ b/remoting/test/fake_network_manager.h
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+// Copyright 2014 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 REMOTING_TEST_FAKE_NETWORK_MANAGER_H_
+#define REMOTING_TEST_FAKE_NETWORK_MANAGER_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "third_party/webrtc/base/network.h"
+
+namespace remoting {
+
+// FakeNetworkManager always returns one interface with the IP address
+// specified in the constructor.
+class FakeNetworkManager : public rtc::NetworkManager {
+ public:
+  FakeNetworkManager(const rtc::IPAddress& address);
+  virtual ~FakeNetworkManager();
+
+  // rtc::NetworkManager interface.
+  virtual void StartUpdating() OVERRIDE;
+  virtual void StopUpdating() OVERRIDE;
+  virtual void GetNetworks(NetworkList* networks) const OVERRIDE;
+
+ protected:
+  void SendNetworksChangedSignal();
+
+  bool started_;
+  scoped_ptr<rtc::Network> network_;
+
+  base::WeakPtrFactory<FakeNetworkManager> weak_factory_;
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_TEST_FAKE_NETWORK_MANAGER_H_