NS_IMETHODIMP DocumentViewerImpl::GetTextZoom(float* aTextZoom)
DocumentViewerImpl::GetTextZoom(float* aTextZoom)
NS_IMETHODIMP DocumentViewerImpl::GetTextZoom(float* aTextZoom){  NS_ENSURE_ARG_POINTER(aTextZoom);  if (mDeviceContext) {    return mDeviceContext->GetTextZoom(*aTextZoom);  }  *aTextZoom = 1.0;  return NS_OK;}