chromeos: Add MockDBusThreadManager and mock clients.

chrome/browser/chromeos/dbus/mock_sensors_client.h

+// Copyright (c) 2011 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 CHROME_BROWSER_CHROMEOS_DBUS_MOCK_SENSORS_CLIENT_H_
+#define CHROME_BROWSER_CHROMEOS_DBUS_MOCK_SENSORS_CLIENT_H_
+
+#include <string>
+
+#include "chrome/browser/chromeos/dbus/sensors_client.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace chromeos {
+
+class MockSensorsClient : public SensorsClient {
+ public:
+  MockSensorsClient();
+  virtual ~MockSensorsClient();
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_DBUS_MOCK_SENSORS_CLIENT_H_