Make frames.h usable without handles-inl.h header.

Make frames.h usable without handles-inl.h header.

This CL us a pure refactoring that makes an empty compilation unit
including just "frames.h" but not "handles-inl.h" compile without
warnings or errors. This is needed to further reduce the header
dependency tangle.

R=ishell@chromium.org

Committed: https://crrev.com/8ff59e8d39df3d0a76d5192cbfdb3497a17f2d04
Cr-Commit-Position: refs/heads/master@{#30476}

[Igor Sheludko, 2015-08-31 14:48:17]

lgtm

[Michael Starzinger, 2015-08-31 14:55:05]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2015-08-31 14:55:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1319423003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1319423003/1

[commit-bot: I haz the power, 2015-08-31 15:04:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-08-31 15:04:39]

Patchset 1 (id:??) landed as
https://crrev.com/8ff59e8d39df3d0a76d5192cbfdb3497a17f2d04
Cr-Commit-Position: refs/heads/master@{#30476}