Adding Chrome-side WebVR interface

content/browser/vr/cardboard/cardboard_vr_device.h

+// Copyright 2015 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 CONTENT_BROWSER_VR_CARDBOARD_VR_DEVICE_H
+#define CONTENT_BROWSER_VR_CARDBOARD_VR_DEVICE_H
+
+#include <jni.h>
+
+#include "base/android/jni_android.h"
+#include "base/basictypes.h"
+#include "content/browser/vr/vr_device.h"
+#include "third_party/WebKit/public/platform/WebVR.h"
+
+namespace content {
+
+class CardboardVRDevice : public VRDevice {
+ public:
+  static bool RegisterCardboardVRDevice(JNIEnv* env);
+
+  CardboardVRDevice(VRDeviceProvider* provider);
+  ~CardboardVRDevice() override;
+
+  void GetVRDevice(blink::WebVRDevice* device) override;
+  void GetHMDSensorState(blink::WebHMDSensorState* state) override;
+  void ResetSensor() override;
+  void GetRenderTargetRects(
+      blink::WebVRFieldOfView leftFov,
+      blink::WebVRFieldOfView rightFov,
+      blink::WebVRVector4* leftRect,
+      blink::WebVRVector4* rightRect) override;
+
+  void OnCardboardTrigger();
+
+ private:
+  void GetOrientationPosition(
+    blink::WebVRVector4& orientation,
+    blink::WebVRVector3& position);
+
+  base::android::ScopedJavaGlobalRef<jobject> j_cardboard_device_;
+
+  unsigned int frame_index_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_VR_CARDBOARD_VR_DEVICE_H