message: insert activecontext's window pointer in VR swapbuffer
diff: @@ -219,9 +219,7 @@ void WrappedOpenGL::HandleVRFrameMarkers(const GLchar *buf, GLsizei length)
  {
  if(strstr(buf, "vr-marker,frame_end,type,application") != NULL)
  {
  - void *ctx = NULL, *wnd = NULL;
  - RenderDoc::Inst().GetActiveWindow(ctx, wnd);
  - SwapBuffers(wnd);
  + SwapBuffers((void *)m_ActiveContexts[Threading::GetCurrentID()].wnd);
  m_UsesVRMarkers = true;
  if(IsActiveCapturing(m_State))
  