Revert of Migrate WebVR Cardboard implementation to GVR

device/vr/android/gvr/gvr_device_provider.h

Index: device/vr/android/gvr/gvr_device_provider.h
diff --git a/device/vr/android/gvr/gvr_device_provider.h b/device/vr/android/gvr/gvr_device_provider.h
deleted file mode 100644
index d3e3225f7f3f525059e9e31decd3c06667917bc1..0000000000000000000000000000000000000000
--- a/device/vr/android/gvr/gvr_device_provider.h
+++ /dev/null
@@ -1,41 +0,0 @@
-// 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_DEVICE_PROVIDER_H
-#define DEVICE_VR_ANDROID_GVR_DEVICE_PROVIDER_H
-
-#include <jni.h>
-
-#include <memory>
-
-#include "base/android/jni_android.h"
-#include "base/macros.h"
-#include "device/vr/android/gvr/gvr_api_manager.h"
-#include "device/vr/vr_device.h"
-#include "device/vr/vr_device_provider.h"
-
-namespace device {
-
-class GvrDeviceProvider : public VRDeviceProvider, public GvrApiManagerClient {
- public:
-  GvrDeviceProvider();
-  ~GvrDeviceProvider() override;
-
-  void GetDevices(std::vector<VRDevice*>* devices) override;
-  void Initialize() override;
-
-  // GvrApiManagerClient
-  void OnGvrApiInitialized(gvr::GvrApi* gvr_api) override;
-  void OnGvrApiShutdown() override;
-
- private:
-  std::unique_ptr<VRDevice> vr_device_;
-  base::android::ScopedJavaGlobalRef<jobject> j_device_;
-
-  DISALLOW_COPY_AND_ASSIGN(GvrDeviceProvider);
-};
-
-}  // namespace device
-
-#endif  // DEVICE_VR_ANDROID_GVR_DEVICE_PROVIDER_H