[PATCH 1 of 2] store: abstract out how we retrieve a file's size

[Matt Mackall]

On Wed, 2012-06-27 at 10:37 -0700, Bryan O'Sullivan wrote:
> # HG changeset patch
> # User Bryan O'Sullivan <bryano at fb.com>
> # Date 1340662446 25200
> # Node ID 080b8d275cfe8f355fbe778a175a1c4cf1e08083
> # Parent  a0c9d840a8948df01be0013f14f9ce5863f7b093
> store: abstract out how we retrieve a file's size

[backlog = 123]

I've queued this one for default, thanks. Going to hold off on the
extension for now though.

-- 
Mathematics is the supreme nostalgia of our time.