Reland of Change assert to release assert for WTF::double_conversion::Vector to prevent OOB memory access.

Reland of Change assert to release assert for WTF::double_conversion::Vector to prevent OOB memory access. (patchset #1 id:1 of https://codereview.chromium.org/1694093002/ )

Reason for revert:
This revert was not the culprit CL. Reverting the revert.

Original issue's description:
> Revert of Change assert to release assert for WTF::double_conversion::Vector to prevent OOB memory access. (patchset #2 id:20001 of https://codereview.chromium.org/1677363002/ )
>
> Reason for revert:
> Perf failures. Speculative revert to see if it fixes.
>
> BUG=586581, 574802
>
> Original issue's description:
> > Change assert to release assert for WTF::double_conversion::Vector to prevent OOB memory access.
> >
> > R=inferno@chromium.org, mbarbella@chromium.org, ochang@chromium.org, tkent@chromium.org
> > BUG=574802
> >
> > Committed: https://crrev.com/ad618c3357e189fb685ea88fe4b8b25ac34f2c75
> > Cr-Commit-Position: refs/heads/master@{#374424}
>
> TBR=mbarbella@chromium.org,ochang@chromium.org,tkent@chromium.org,mmoroz@chromium.org
> # Not skipping CQ checks because original CL landed more than 1 days ago.
> BUG=574802
>
> Committed: https://crrev.com/64cb1f5327522142c658100746f34f8a012a45fa
> Cr-Commit-Position: refs/heads/master@{#375389}

TBR=mbarbella@chromium.org,ochang@chromium.org,tkent@chromium.org,mmoroz@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=586581, 574802
Committed: https://crrev.com/ba5210f9c6de2dbff15775abb509553f87002f41
Cr-Commit-Position: refs/heads/master@{#376043}

[inferno, 2016-02-17 22:59:26]

Created Reland of Change assert to release assert for
WTF::double_conversion::Vector to prevent OOB memory access.

[commit-bot: I haz the power, 2016-02-18 00:13:21]

Description was changed from

==========
Reland of Change assert to release assert for WTF::double_conversion::Vector to
prevent OOB memory access. (patchset #1 id:1 of
https://codereview.chromium.org/1694093002/ )

Reason for revert:
This revert was not the culprit CL. Reverting the revert.

Original issue's description:
> Revert of Change assert to release assert for WTF::double_conversion::Vector
to prevent OOB memory access. (patchset #2 id:20001 of
https://codereview.chromium.org/1677363002/ )
> 
> Reason for revert:
> Perf failures. Speculative revert to see if it fixes.
> 
> BUG=586581,574802
> 
> Original issue's description:
> > Change assert to release assert for WTF::double_conversion::Vector to
prevent OOB memory access.
> >
> > R=inferno@chromium.org, mbarbella@chromium.org, ochang@chromium.org,
tkent@chromium.org
> > BUG=574802
> >
> > Committed: https://crrev.com/ad618c3357e189fb685ea88fe4b8b25ac34f2c75
> > Cr-Commit-Position: refs/heads/master@{#374424}
> 
>
TBR=mbarbella@chromium.org,ochang@chromium.org,tkent@chromium.org,mmoroz@chro...
> # Not skipping CQ checks because original CL landed more than 1 days ago.
> BUG=574802
> 
> Committed: https://crrev.com/64cb1f5327522142c658100746f34f8a012a45fa
> Cr-Commit-Position: refs/heads/master@{#375389}

TBR=mbarbella@chromium.org,ochang@chromium.org,tkent@chromium.org,mmoroz@chro...
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=586581,574802
==========

to

==========
Reland of Change assert to release assert for WTF::double_conversion::Vector to
prevent OOB memory access. (patchset #1 id:1 of
https://codereview.chromium.org/1694093002/ )

Reason for revert:
This revert was not the culprit CL. Reverting the revert.

Original issue's description:
> Revert of Change assert to release assert for WTF::double_conversion::Vector
to prevent OOB memory access. (patchset #2 id:20001 of
https://codereview.chromium.org/1677363002/ )
>
> Reason for revert:
> Perf failures. Speculative revert to see if it fixes.
>
> BUG=586581,574802
>
> Original issue's description:
> > Change assert to release assert for WTF::double_conversion::Vector to
prevent OOB memory access.
> >
> > R=inferno@chromium.org, mbarbella@chromium.org, ochang@chromium.org,
tkent@chromium.org
> > BUG=574802
> >
> > Committed: https://crrev.com/ad618c3357e189fb685ea88fe4b8b25ac34f2c75
> > Cr-Commit-Position: refs/heads/master@{#374424}
>
>
TBR=mbarbella@chromium.org,ochang@chromium.org,tkent@chromium.org,mmoroz@chro...
> # Not skipping CQ checks because original CL landed more than 1 days ago.
> BUG=574802
>
> Committed: https://crrev.com/64cb1f5327522142c658100746f34f8a012a45fa
> Cr-Commit-Position: refs/heads/master@{#375389}

TBR=mbarbella@chromium.org,ochang@chromium.org,tkent@chromium.org,mmoroz@chro...
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=586581,574802

Committed: https://crrev.com/ba5210f9c6de2dbff15775abb509553f87002f41
Cr-Commit-Position: refs/heads/master@{#376043}
==========