Unity2018で、Standard AssetsのBloom.csやBloomAndFlares等でビルドエラーなる場合

Assets/Editor/ImageEffects/BloomAndFlaresEditor.cs(80,64): error CS1061: Type `Camera' does not contain a definition for `hdr' and no extension method `hdr' of type `Camera' could be found (are you missing a using directive or an assembly reference?)

            // screen blend is not supported when HDR is enabled (will cap values)

            doHdr = false;
            if (hdr == HDRBloomMode.Auto)
                // doHdr = source.format == RenderTextureFormat.ARGBHalf && GetComponent<Camera>().hdr;
                doHdr = source.format == RenderTextureFormat.ARGBHalf && GetComponent<Camera>().allowHDR;
            else
            {
                doHdr = hdr == HDRBloomMode.On;
            }