Pass first child to SVGLayoutSupport::layoutChildren

Pass first child to SVGLayoutSupport::layoutChildren

Since everything depending on the "subtree root" has now been hoisted
into the callers, we can pass firstChild() instead and avoid calling
slowFirstChild().

BUG=603956
Committed: https://crrev.com/4526eaa97722bae66029643bca144b9903eaacd9
Cr-Commit-Position: refs/heads/master@{#388337}

[fs, 2016-04-19 19:42:14]

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

[fs, 2016-04-19 19:42:14]

This kind of jumps past the "selfNeedsLayout()" question mark, but I had it
queued already so...

[pdr., 2016-04-19 20:28:07]

On 2016/04/19 at 19:42:14, fs wrote:
> This kind of jumps past the "selfNeedsLayout()" question mark, but I had it
queued already so...

+1 +1 +!

LGTM

[fs, 2016-04-19 22:43:08]

The CQ bit was checked by fs@opera.com

[commit-bot: I haz the power, 2016-04-19 22:43:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1897273002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1897273002/1

[commit-bot: I haz the power, 2016-04-19 22:48:18]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-22 19:17:23]

Description was changed from

==========
Pass first child to SVGLayoutSupport::layoutChildren

Since everything depending on the "subtree root" has now been hoisted
into the callers, we can pass firstChild() instead and avoid calling
slowFirstChild().

BUG=603956
==========

to

==========
Pass first child to SVGLayoutSupport::layoutChildren

Since everything depending on the "subtree root" has now been hoisted
into the callers, we can pass firstChild() instead and avoid calling
slowFirstChild().

BUG=603956

Committed: https://crrev.com/4526eaa97722bae66029643bca144b9903eaacd9
Cr-Commit-Position: refs/heads/master@{#388337}
==========

[commit-bot: I haz the power, 2016-04-22 19:17:24]

Patchset 1 (id:??) landed as
https://crrev.com/4526eaa97722bae66029643bca144b9903eaacd9
Cr-Commit-Position: refs/heads/master@{#388337}