chromeos: Add MockDBusThreadManager and mock clients.

chrome/browser/chromeos/dbus/mock_power_manager_client.h

Index: chrome/browser/chromeos/dbus/mock_power_manager_client.h
diff --git a/chrome/browser/chromeos/dbus/mock_power_manager_client.h b/chrome/browser/chromeos/dbus/mock_power_manager_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..8b755a30d9258307eed9b2b73df0f4d9e44a60ce
--- /dev/null
+++ b/chrome/browser/chromeos/dbus/mock_power_manager_client.h
@@ -0,0 +1,28 @@
+// 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_POWER_MANAGER_CLIENT_H_
+#define CHROME_BROWSER_CHROMEOS_DBUS_MOCK_POWER_MANAGER_CLIENT_H_
+
+#include <string>
+
+#include "chrome/browser/chromeos/dbus/power_manager_client.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace chromeos {
+
+class MockPowerManagerClient : public PowerManagerClient {
+ public:
+  MockPowerManagerClient();
+  virtual ~MockPowerManagerClient();
+
+  MOCK_METHOD1(AddObserver, void(Observer*));
+  MOCK_METHOD1(RemoveObserver, void(Observer*));
+  MOCK_METHOD1(DecreaseScreenBrightness, void(bool));
+  MOCK_METHOD0(IncreaseScreenBrightness, void(void));
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_DBUS_MOCK_POWER_MANAGER_CLIENT_H_