Do not record to_gpu call by mock
Do not record to_gpu call by mock

wkentaro/chainer,niboshi/chainer,jnishi/chainer,jnishi/chainer,sinhrks/chainer,AlpacaDB/chainer,umitanuki/chainer,jnishi/chainer,aonotas/chainer,woodshop/complex-chainer,hvy/chainer,1986ks/chainer,tscohen/chainer,kiyukuta/chainer,ktnyt/chainer,ysekky/chainer,keisuke-umezawa/chainer,ktnyt/chainer,truongdq/chainer,okuta/chainer,kuwa32/chainer,chainer/chainer,cupy/cupy,masia02/chainer,hvy/chainer,ytoyama/yans_chainer_hackathon,muupan/chainer,keisuke-umezawa/chainer,truongdq/chainer,jnishi/chainer,chainer/chainer,hvy/chainer,kashif/chainer,minhpqn/chainer,ikasumi/chainer,t-abe/chainer,tkerola/chainer,cupy/cupy,wkentaro/chainer,chainer/chainer,cemoody/chainer,wkentaro/chainer,yanweifu/chainer,okuta/chainer,chainer/chainer,delta2323/chainer,hvy/chainer,t-abe/chainer,pfnet/chainer,cupy/cupy,muupan/chainer,okuta/chainer,Kaisuke5/chainer,tigerneil/chainer,sou81821/chainer,kikusu/chainer,kikusu/chainer,niboshi/chainer,benob/chainer,woodshop/chainer,benob/chainer,okuta/chainer,niboshi/chainer,wavelets/chainer,sinhrks/chainer,niboshi/chainer,anaruse/chainer,hidenori-t/chainer,cupy/cupy,keisuke-umezawa/chainer,wkentaro/chainer,AlpacaDB/chainer,keisuke-umezawa/chainer,rezoo/chainer,ronekko/chainer,ktnyt/chainer,ktnyt/chainer,laysakura/chainer