Adding Chrome-side WebVR interface

content/common/vr_messages.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.
+
+// Multiply-included message file, no include guard.
+
+#include <vector>
+
+#include "content/common/vr_param_traits.h"
+#include "ipc/ipc_message_macros.h"
+#include "ipc/ipc_param_traits.h"
+#include "ipc/ipc_platform_file.h"
+#include "third_party/WebKit/public/platform/WebVR.h"
+
+#define IPC_MESSAGE_START VRMsgStart
+
+IPC_STRUCT_TRAITS_BEGIN(blink::WebVRVector3)
+  IPC_STRUCT_TRAITS_MEMBER(x)
+  IPC_STRUCT_TRAITS_MEMBER(y)
+  IPC_STRUCT_TRAITS_MEMBER(z)
+IPC_STRUCT_TRAITS_END()
+
+IPC_STRUCT_TRAITS_BEGIN(blink::WebVRVector4)
+  IPC_STRUCT_TRAITS_MEMBER(x)
+  IPC_STRUCT_TRAITS_MEMBER(y)
+  IPC_STRUCT_TRAITS_MEMBER(z)
+  IPC_STRUCT_TRAITS_MEMBER(w)
+IPC_STRUCT_TRAITS_END()
+
+IPC_STRUCT_TRAITS_BEGIN(blink::WebVRRect)
+  IPC_STRUCT_TRAITS_MEMBER(x)
+  IPC_STRUCT_TRAITS_MEMBER(y)
+  IPC_STRUCT_TRAITS_MEMBER(width)
+  IPC_STRUCT_TRAITS_MEMBER(height)
+IPC_STRUCT_TRAITS_END()
+
+IPC_STRUCT_TRAITS_BEGIN(blink::WebVRFieldOfView)
+  IPC_STRUCT_TRAITS_MEMBER(upDegrees)
+  IPC_STRUCT_TRAITS_MEMBER(downDegrees)
+  IPC_STRUCT_TRAITS_MEMBER(leftDegrees)
+  IPC_STRUCT_TRAITS_MEMBER(rightDegrees)
+IPC_STRUCT_TRAITS_END()
+
+IPC_STRUCT_TRAITS_BEGIN(blink::WebHMDSensorState)
+  IPC_STRUCT_TRAITS_MEMBER(timestamp)
+  IPC_STRUCT_TRAITS_MEMBER(frameIndex)
+  IPC_STRUCT_TRAITS_MEMBER(flags)
+  IPC_STRUCT_TRAITS_MEMBER(orientation)
+  IPC_STRUCT_TRAITS_MEMBER(position)
+  IPC_STRUCT_TRAITS_MEMBER(angularVelocity)
+  IPC_STRUCT_TRAITS_MEMBER(linearVelocity)
+  IPC_STRUCT_TRAITS_MEMBER(angularAcceleration)
+  IPC_STRUCT_TRAITS_MEMBER(linearAcceleration)
+IPC_STRUCT_TRAITS_END()
+
+// Messages sent from the browser to the renderer
+IPC_MESSAGE_ROUTED2(VRMsg_GetDevicesSuccess,
+                    int /* request_id */,
+                    std::vector<blink::WebVRDevice> /* devices */)
+
+IPC_MESSAGE_ROUTED1(VRMsg_GetDevicesError,
+                    int /* request_id */)
+
+// Messages sent from the renderer to the browser.
+
+// Query the list of active WebVR devices.
+IPC_MESSAGE_CONTROL2(VRHostMsg_GetVRDevices,
+                     int32_t /* render_frame_id */,
+                     int /* request_id */)
+
+// Get the current instantaneous state of a position sensor.
+IPC_SYNC_MESSAGE_CONTROL2_1(VRHostMsg_GetSensorState,
+                            int32_t /* render_frame_id */,
+                            unsigned int /* index */,
+                            blink::WebHMDSensorState /* state */)
+
+// Reset the origin and rotation of a position sensor based on current values.
+IPC_MESSAGE_CONTROL2(VRHostMsg_ResetSensor,
+                     int32_t /* render_frame_id */,
+                     unsigned int /* index */)