shill: implement stub proxies for upstart and power_manager

The stub proxies will be used on platforms (Android) that doesn't support
upstart and power_manager.

BUG=b:23726070
TEST=Compile shill with the stub proxies.

Change-Id: I8de646197a5dfdf02dac734b80fe0c67ba95b3ce
Reviewed-on: https://chromium-review.googlesource.com/296802
Commit-Ready: Zeping Qiu <zqiu@chromium.org>
Tested-by: Zeping Qiu <zqiu@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
diff --git a/power_manager_proxy_stub.h b/power_manager_proxy_stub.h
new file mode 100644
index 0000000..b1210dd
--- /dev/null
+++ b/power_manager_proxy_stub.h
@@ -0,0 +1,45 @@
+// Copyright 2015 The Chromium OS 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 SHILL_POWER_MANAGER_PROXY_STUB_H_
+#define SHILL_POWER_MANAGER_PROXY_STUB_H_
+
+#include <string>
+
+#include "shill/power_manager_proxy_interface.h"
+
+namespace shill {
+
+// Stub implementation for PowerManagerProxyInterface.
+class PowerManagerProxyStub : public PowerManagerProxyInterface {
+ public:
+  PowerManagerProxyStub();
+  ~PowerManagerProxyStub() override = default;
+
+  // Inherited from PowerManagerProxyInterface.
+  bool RegisterSuspendDelay(base::TimeDelta timeout,
+                            const std::string& description,
+                            int* delay_id_out) override;
+
+  bool UnregisterSuspendDelay(int delay_id) override;
+
+  bool ReportSuspendReadiness(int delay_id, int suspend_id) override;
+
+  bool RegisterDarkSuspendDelay(base::TimeDelta timeout,
+                                const std::string& description,
+                                int* delay_id_out) override;
+
+  bool UnregisterDarkSuspendDelay(int delay_id) override;
+
+  bool ReportDarkSuspendReadiness(int delay_id, int suspend_id) override;
+
+  bool RecordDarkResumeWakeReason(const std::string& wake_reason) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(PowerManagerProxyStub);
+};
+
+}  // namespace shill
+
+#endif  // SHILL_POWER_MANAGER_PROXY_STUB_H_