Revert of Out-of-line WTF::String's destructor.

Revert of Out-of-line WTF::String's destructor. (patchset #2 id:20001 of https://codereview.chromium.org/2516123002/ )

Reason for revert:
10.7% regression in blink_perf.dom =(

Original issue's description:
> Out-of-line WTF::String's destructor.
>
> This saves ~504KB in the official Linux x64 binary.
>
> BUG=none
>
> Committed: https://crrev.com/2ce3d703c50150ebe5cd6c3f1e2bf4a19f590766
> Cr-Commit-Position: refs/heads/master@{#433737}

TBR=esprehn@chromium.org,mikhail.pozdnyakov@intel.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=none

Committed: https://crrev.com/292004634fa6c82d79175a774cf75f8b74944d1f
Cr-Commit-Position: refs/heads/master@{#434277}

[dcheng, 2016-11-23 19:07:51]

The CQ bit was checked by dcheng@chromium.org

[dcheng, 2016-11-23 19:07:52]

Created Revert of Out-of-line WTF::String's destructor.

[commit-bot: I haz the power, 2016-11-23 19:08:20]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-23 23:29:27]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1479928071595830, "parent_rev":
"4511c250951fa8184ff2387a0c689f266915940c", "commit_rev":
"bae494e43db1e893118e9adf2639aaf4e317e721"}

[commit-bot: I haz the power, 2016-11-23 23:29:56]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-23 23:32:23]

Description was changed from

==========
Revert of Out-of-line WTF::String's destructor. (patchset #2 id:20001 of
https://codereview.chromium.org/2516123002/ )

Reason for revert:
10.7% regression in blink_perf.dom =(

Original issue's description:
> Out-of-line WTF::String's destructor.
> 
> This saves ~504KB in the official Linux x64 binary.
> 
> BUG=none
> 
> Committed: https://crrev.com/2ce3d703c50150ebe5cd6c3f1e2bf4a19f590766
> Cr-Commit-Position: refs/heads/master@{#433737}

TBR=esprehn@chromium.org,mikhail.pozdnyakov@intel.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=none
==========

to

==========
Revert of Out-of-line WTF::String's destructor. (patchset #2 id:20001 of
https://codereview.chromium.org/2516123002/ )

Reason for revert:
10.7% regression in blink_perf.dom =(

Original issue's description:
> Out-of-line WTF::String's destructor.
>
> This saves ~504KB in the official Linux x64 binary.
>
> BUG=none
>
> Committed: https://crrev.com/2ce3d703c50150ebe5cd6c3f1e2bf4a19f590766
> Cr-Commit-Position: refs/heads/master@{#433737}

TBR=esprehn@chromium.org,mikhail.pozdnyakov@intel.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=none

Committed: https://crrev.com/292004634fa6c82d79175a774cf75f8b74944d1f
Cr-Commit-Position: refs/heads/master@{#434277}
==========

[commit-bot: I haz the power, 2016-11-23 23:32:24]

Patchset 1 (id:??) landed as
https://crrev.com/292004634fa6c82d79175a774cf75f8b74944d1f
Cr-Commit-Position: refs/heads/master@{#434277}