bool RenderWidgetHostViewAura::OnMessageReceived(
    const IPC::Message& message) {
  bool handled = true;
  IPC_BEGIN_MESSAGE_MAP(RenderWidgetHostViewAura, message)
    IPC_MESSAGE_HANDLER(ViewHostMsg_TextInputStateChanged,
                        OnTextInputStateChanged)
    IPC_MESSAGE_UNHANDLED(handled = false)
  IPC_END_MESSAGE_MAP()
  return handled;
}

Unknown