Adding Chrome-side WebVR interface

content/browser/renderer_host/vr_message_filter.cc

Index: content/browser/renderer_host/vr_message_filter.cc
diff --git a/content/browser/renderer_host/vr_message_filter.cc b/content/browser/renderer_host/vr_message_filter.cc
new file mode 100644
index 0000000000000000000000000000000000000000..833fc0ec31569f3336d74b6bd428fa967ac29d6a
--- /dev/null
+++ b/content/browser/renderer_host/vr_message_filter.cc
@@ -0,0 +1,54 @@
+// 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.
+
+#include "content/browser/renderer_host/vr_message_filter.h"
+
+#include "content/common/vr_messages.h"
+#include "third_party/WebKit/public/platform/WebVR.h"
+
+namespace content {
+
+VRMessageFilter::VRMessageFilter() : BrowserMessageFilter(VRMsgStart) {
+}
+
+VRMessageFilter::~VRMessageFilter() {
+}
+
+void VRMessageFilter::OnDestruct() const {
+  BrowserThread::DeleteOnIOThread::Destruct(this);
+}
+
+bool VRMessageFilter::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(VRMessageFilter, message)
+  IPC_MESSAGE_HANDLER(VRHostMsg_GetVRDevices, OnGetVRDevices)
+  IPC_MESSAGE_HANDLER(VRHostMsg_GetSensorState, OnGetSensorState)
+  IPC_MESSAGE_HANDLER(VRHostMsg_ResetSensor, OnResetSensor)
+  IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void VRMessageFilter::OnGetVRDevices(int32_t render_frame_id, int request_id) {
+  std::vector<blink::WebVRDevice> devices;
+  GetServiceInstance()->GetVRDevices(&devices);
+  Send(new VRMsg_GetDevicesSuccess(render_frame_id, request_id, devices));
+}
+
+void VRMessageFilter::OnGetSensorState(int32_t render_frame_id,
+                                       unsigned int index,
+                                       blink::WebHMDSensorState* state) {
+  VRDevice* device = GetServiceInstance()->GetDevice(index);
+  if (device)
+    device->GetSensorState(state);
+}
+
+void VRMessageFilter::OnResetSensor(int32_t render_frame_id,
+                                    unsigned int index) {
+  VRDevice* device = GetServiceInstance()->GetDevice(index);
+  if (device)
+    device->ResetSensor();
+}
+
+}  // namespace content