[Device Service] Port ScreenOrientationListener into Device Service.

services/device/screen_orientation/screen_orientation_listener_android.h

Index: services/device/screen_orientation/screen_orientation_listener_android.h
diff --git a/services/device/screen_orientation/screen_orientation_listener_android.h b/services/device/screen_orientation/screen_orientation_listener_android.h
new file mode 100644
index 0000000000000000000000000000000000000000..4df873a4346c84d2d0bb6d304806add71267c218
--- /dev/null
+++ b/services/device/screen_orientation/screen_orientation_listener_android.h
@@ -0,0 +1,34 @@
+// 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 SERVICES_DEVICE_SCREEN_ORIENTATION_SCREEN_ORIENTATION_LISTENER_ANDROID_H_
+#define SERVICES_DEVICE_SCREEN_ORIENTATION_SCREEN_ORIENTATION_LISTENER_ANDROID_H_
+
+#include "base/macros.h"
+#include "device/screen_orientation/public/interfaces/screen_orientation.mojom.h"
+
+namespace device {
+
+class ScreenOrientationListenerAndroid
+    : public mojom::ScreenOrientationListener {
+ public:
+  static void Create(mojom::ScreenOrientationListenerRequest request);
+
+  ~ScreenOrientationListenerAndroid() override;
+
+ private:
+  ScreenOrientationListenerAndroid();
+
+  // mojom::ScreenOrientationListener:
+  void Start() override;
+  void Stop() override;
+
+  int listeners_count_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScreenOrientationListenerAndroid);
+};
+
+}  // namespace device
+
+#endif  // SERVICES_DEVICE_SCREEN_ORIENTATION_SCREEN_ORIENTATION_LISTENER_ANDROID_H_