[Base] Use variadic template for helpers in bind_internal.h (wave 2)

[Base] Use variadic template for helpers in bind_internal.h

This CL removes generated code for
* RunnableAdapter
* ForceVoidReturn
* FunctorTraits
* InvokeHelper
from base/bind_internal.h.

BUG=433164
Committed: https://crrev.com/c821499285f70fac3090ff79850a0f2fdacec870
Cr-Commit-Position: refs/heads/master@{#304997}

[tzik, 2014-10-08 15:59:02]

tzik@chromium.org changed reviewers:
+ ajwong@chromium.org

[tzik, 2014-10-08 15:59:55]

PTL.
This is another easy part that depends on the callback.h update.

[awong, 2014-10-08 16:01:33]

LGTM

This one might even make build times drop. :D

[tzik, 2014-11-20 08:41:30]

The CQ bit was checked by tzik@chromium.org

[commit-bot: I haz the power, 2014-11-20 08:42:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/621773002/40001

[commit-bot: I haz the power, 2014-11-20 10:09:51]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2014-11-20 10:10:44]

Patchset 3 (id:??) landed as
https://crrev.com/c821499285f70fac3090ff79850a0f2fdacec870
Cr-Commit-Position: refs/heads/master@{#304997}