Adding Chrome-side WebVR interface

content/browser/renderer_host/vr_message_filter.h

Index: content/browser/renderer_host/vr_message_filter.h
diff --git a/content/browser/renderer_host/vr_message_filter.h b/content/browser/renderer_host/vr_message_filter.h
new file mode 100644
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+++ b/content/browser/renderer_host/vr_message_filter.h
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+// 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_RENDERER_HOST_VR_MESSAGE_FILTER_H_
+#define CONTENT_BROWSER_RENDERER_HOST_VR_MESSAGE_FILTER_H_
+
+#include <vector>
+#include "base/compiler_specific.h"
+#include "base/memory/shared_memory.h"
+#include "content/browser/vr/vr_service.h"
+#include "content/browser/vr/vr_service_consumer.h"
+#include "content/public/browser/browser_message_filter.h"
+
+namespace blink {
+struct WebHMDSensorState;
+class WebVRDevice;
+struct WebVRVector4;
+}
+
+namespace content {
+
+class RenderProcessHost;
+
+class VRMessageFilter :
+    public BrowserMessageFilter, public VRServiceConsumer {
+ public:
+  VRMessageFilter();
+
+  // BrowserMessageFilter implementation.
+  bool OnMessageReceived(const IPC::Message& message) override;
+  void OnDestruct() const override;
+
+ protected:
+  ~VRMessageFilter() override;
+
+ private:
+  friend class BrowserThread;
+  friend class base::DeleteHelper<VRMessageFilter>;
+
+  void OnGetVRDevices(std::vector<blink::WebVRDevice>* devices);
+
+  void OnGetSensorState(
+      unsigned int index, blink::WebHMDSensorState* state);
+
+  void OnResetSensor(unsigned int index);
+
+  void OnGetRenderTargetRects(unsigned index,
+      blink::WebVRFieldOfView leftFov,
+      blink::WebVRFieldOfView rightFov,
+      blink::WebVRVector4* leftRect,
+      blink::WebVRVector4* rightRect);
+
+  DISALLOW_COPY_AND_ASSIGN(VRMessageFilter);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_VR_MESSAGE_FILTER_H_