Add macro for getting a PropertyAttributes for the runtime functions

Add macro for getting a PropertyAttributes for the runtime functions

Motivation: Cleanup

BUG=None
R=adamk
LOG=N

Committed: https://crrev.com/59525f07dfa4d80f168b33ee6459336bdc1e4184
Cr-Commit-Position: refs/heads/master@{#26440}

[arv (Not doing code reviews), 2015-02-03 19:13:06]

One more rename

[arv (Not doing code reviews), 2015-02-03 19:13:59]

This depends on https://codereview.chromium.org/896643003/

I could change the order of these if you prefer.

[adamk, 2015-02-03 19:20:39]

lgtm

[arv (Not doing code reviews), 2015-02-04 17:45:10]

git rebase

[arv (Not doing code reviews), 2015-02-04 17:48:46]

The CQ bit was checked by arv@chromium.org

[commit-bot: I haz the power, 2015-02-04 17:49:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/897633003/40001

[commit-bot: I haz the power, 2015-02-04 18:22:30]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-02-04 18:22:48]

Patchset 3 (id:??) landed as
https://crrev.com/59525f07dfa4d80f168b33ee6459336bdc1e4184
Cr-Commit-Position: refs/heads/master@{#26440}