Make SVGElement::propertyFromAttribute return raw pointer

Make SVGElement::propertyFromAttribute return raw pointer

Ownership does not transfer from the element, so we can make the return
value a raw pointer, and hence avoid ref-churn, save some footprint and
allow tail-calls in collectStyleForPresentationAttribute.

Committed: https://crrev.com/457412bbf12d227346add16ebbab796d6d6e0139
Cr-Commit-Position: refs/heads/master@{#366536}

[fs, 2015-12-21 21:02:47]

fs@opera.com changed reviewers:
+ pdr@chromium.org

[pdr., 2015-12-22 03:34:27]

The CQ bit was checked by pdr@chromium.org

[pdr., 2015-12-22 03:34:27]

lgtm

[commit-bot: I haz the power, 2015-12-22 03:34:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1541923002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1541923002/1

[commit-bot: I haz the power, 2015-12-22 03:38:57]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-22 03:39:50]

Description was changed from

==========
Make SVGElement::propertyFromAttribute return raw pointer

Ownership does not transfer from the element, so we can make the return
value a raw pointer, and hence avoid ref-churn, save some footprint and
allow tail-calls in collectStyleForPresentationAttribute.
==========

to

==========
Make SVGElement::propertyFromAttribute return raw pointer

Ownership does not transfer from the element, so we can make the return
value a raw pointer, and hence avoid ref-churn, save some footprint and
allow tail-calls in collectStyleForPresentationAttribute.

Committed: https://crrev.com/457412bbf12d227346add16ebbab796d6d6e0139
Cr-Commit-Position: refs/heads/master@{#366536}
==========

[commit-bot: I haz the power, 2015-12-22 03:39:50]

Patchset 1 (id:??) landed as
https://crrev.com/457412bbf12d227346add16ebbab796d6d6e0139
Cr-Commit-Position: refs/heads/master@{#366536}