Added support for OpenVR controllers

device/vr/openvr/openvr_gamepad_data_fetcher.h

Index: device/vr/openvr/openvr_gamepad_data_fetcher.h
diff --git a/device/vr/openvr/openvr_gamepad_data_fetcher.h b/device/vr/openvr/openvr_gamepad_data_fetcher.h
new file mode 100644
index 0000000000000000000000000000000000000000..37544a34e13b8e7820afbfe000a76ae4fbd9a546
--- /dev/null
+++ b/device/vr/openvr/openvr_gamepad_data_fetcher.h
@@ -0,0 +1,47 @@
+// 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 DEVICE_VR_OPENVR_GAMEPAD_DATA_FETCHER_H_
+#define DEVICE_VR_OPENVR_GAMEPAD_DATA_FETCHER_H_
+
+#include "device/gamepad/gamepad_data_fetcher.h"
+
+namespace vr {
+class IVRSystem;
+}  // namespace vr
+
+namespace device {
+
+class OpenVRGamepadDataFetcher : public GamepadDataFetcher {
+ public:
+  class Factory : public GamepadDataFetcherFactory {
+   public:
+    Factory(unsigned int display_id, vr::IVRSystem* vr);
+    ~Factory() override;
+    std::unique_ptr<GamepadDataFetcher> CreateDataFetcher() override;
+    GamepadSource source() override;
+
+   private:
+    unsigned int display_id_;
+    vr::IVRSystem* vr_system_;
+  };
+
+  OpenVRGamepadDataFetcher(unsigned int display_id, vr::IVRSystem* vr);
+  ~OpenVRGamepadDataFetcher() override;
+
+  GamepadSource source() override;
+
+  void GetGamepadData(bool devices_changed_hint) override;
+  void PauseHint(bool paused) override;
+  void OnAddedToProvider() override;
+
+ private:
+  unsigned int display_id_;
+  vr::IVRSystem* vr_system_;
+
+  DISALLOW_COPY_AND_ASSIGN(OpenVRGamepadDataFetcher);
+};
+
+}  // namespace device
+#endif  // DEVICE_VR_OPENVR_GAMEPAD_DATA_FETCHER_H_