Keep constness of arrays in PreprocessBatchNormResult
Keep constness of arrays in PreprocessBatchNormResult

jnishi/chainer,wkentaro/chainer,hvy/chainer,keisuke-umezawa/chainer,wkentaro/chainer,okuta/chainer,ktnyt/chainer,jnishi/chainer,tkerola/chainer,hvy/chainer,chainer/chainer,keisuke-umezawa/chainer,hvy/chainer,ktnyt/chainer,chainer/chainer,ktnyt/chainer,chainer/chainer,okuta/chainer,niboshi/chainer,keisuke-umezawa/chainer,ktnyt/chainer,niboshi/chainer,hvy/chainer,jnishi/chainer,keisuke-umezawa/chainer,okuta/chainer,wkentaro/chainer,wkentaro/chainer,niboshi/chainer,chainer/chainer,niboshi/chainer,okuta/chainer,pfnet/chainer,jnishi/chainer