Add tests for pinned memory pool
Add tests for pinned memory pool

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