Added support for GVR controllers

device/vr/android/gvr/gvr_gamepad_data_fetcher.h

Index: device/vr/android/gvr/gvr_gamepad_data_fetcher.h
diff --git a/device/vr/android/gvr/gvr_gamepad_data_fetcher.h b/device/vr/android/gvr/gvr_gamepad_data_fetcher.h
new file mode 100644
index 0000000000000000000000000000000000000000..f4199d3c61624dfb2f35285b13e2281d3630340a
--- /dev/null
+++ b/device/vr/android/gvr/gvr_gamepad_data_fetcher.h
@@ -0,0 +1,50 @@
+// Copyright 2016 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_ANDROID_GVR_GAMEPAD_DATA_FETCHER_H_
+#define DEVICE_VR_ANDROID_GVR_GAMEPAD_DATA_FETCHER_H_
+
+#include <string>
+
+#include "device/gamepad/gamepad_data_fetcher.h"
+#include "third_party/gvr-android-sdk/src/ndk-beta/include/vr/gvr/capi/include/gvr_controller.h"
+#include "third_party/gvr-android-sdk/src/ndk-beta/include/vr/gvr/capi/include/gvr_types.h"
+
+namespace device {
+
+class GvrDelegate;
+
+class GvrGamepadDataFetcher : public GamepadDataFetcher {
+ public:
+  class Factory : public GamepadDataFetcherFactory {
+   public:
+    Factory(GvrDelegate* delegate, unsigned int display_id);
+    ~Factory() override;
+    std::unique_ptr<GamepadDataFetcher> CreateDataFetcher() override;
+    GamepadSource source() override;
+
+   private:
+    GvrDelegate* delegate_;
+    unsigned int display_id_;
+  };
+
+  GvrGamepadDataFetcher(GvrDelegate* delegate, unsigned int display_id);
+  ~GvrGamepadDataFetcher() override;
+
+  GamepadSource source() override;
+
+  void GetGamepadData(bool devices_changed_hint) override;
+  void PauseHint(bool paused) override;
+  void OnAddedToProvider() override;
+
+ private:
+  std::unique_ptr<gvr::ControllerApi> controller_api_;
+  gvr::ControllerState controller_state_;
+  unsigned int display_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(GvrGamepadDataFetcher);
+};
+
+}  // namespace device
+#endif  // DEVICE_VR_ANDROID_GVR_GAMEPAD_DATA_FETCHER_H_