base: eliminate TupleTraits and TupleTypes

base: eliminate TupleTraits and TupleTypes

The only remaining use of these were base::TupleTypes<T>::ValueTuple,
which just maps Tuple<Ts...> to Tuple<remove_reference_t<Ts>...>.
However, all of the uses were for reference-free tuples, making it a
noop.

BUG=554987
Committed: https://crrev.com/390ab1e0cbc72313e9a4070424daa84e69d8b710
Cr-Commit-Position: refs/heads/master@{#379667}

[mdempsky, 2016-03-07 15:48:37]

mdempsky@chromium.org changed reviewers:
+ danakj@chromium.org, tzik@chromium.org

[tzik, 2016-03-07 18:46:19]

lgtm

[danakj, 2016-03-07 21:35:16]

LGTM

[mdempsky, 2016-03-07 21:37:16]

mdempsky@chromium.org changed reviewers:
+ piman@chromium.org

[mdempsky, 2016-03-07 21:37:17]

+piman for content and ppapi/proxy

[piman, 2016-03-07 22:10:07]

lgtm

[mdempsky, 2016-03-07 22:11:35]

The CQ bit was checked by mdempsky@chromium.org

[commit-bot: I haz the power, 2016-03-07 22:11:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1768153002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1768153002/1

[commit-bot: I haz the power, 2016-03-07 22:18:46]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-07 22:20:16]

Description was changed from

==========
base: eliminate TupleTraits and TupleTypes

The only remaining use of these were base::TupleTypes<T>::ValueTuple,
which just maps Tuple<Ts...> to Tuple<remove_reference_t<Ts>...>.
However, all of the uses were for reference-free tuples, making it a
noop.

BUG=554987
==========

to

==========
base: eliminate TupleTraits and TupleTypes

The only remaining use of these were base::TupleTypes<T>::ValueTuple,
which just maps Tuple<Ts...> to Tuple<remove_reference_t<Ts>...>.
However, all of the uses were for reference-free tuples, making it a
noop.

BUG=554987

Committed: https://crrev.com/390ab1e0cbc72313e9a4070424daa84e69d8b710
Cr-Commit-Position: refs/heads/master@{#379667}
==========

[commit-bot: I haz the power, 2016-03-07 22:20:17]

Patchset 1 (id:??) landed as
https://crrev.com/390ab1e0cbc72313e9a4070424daa84e69d8b710
Cr-Commit-Position: refs/heads/master@{#379667}