Use SVGInlineTextMetricsIterator in updateLayoutAttributes

Use SVGInlineTextMetricsIterator in updateLayoutAttributes

This reuses a pre-existing piece to do the "dual offset/variable"
iteration, hiding (and sharing) the complexity.

BUG=607906
Committed: https://crrev.com/7730dd28f370e4f0614b31af83fd600e81f1c18c
Cr-Commit-Position: refs/heads/master@{#394412}

[fs, 2016-05-18 12:24:11]

fs@opera.com changed reviewers:
+ davve@opera.com

[davve, 2016-05-18 13:59:10]

lgtm

[fs, 2016-05-18 14:13:41]

The CQ bit was checked by fs@opera.com

[commit-bot: I haz the power, 2016-05-18 14:13:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1988063002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1988063002/1

[commit-bot: I haz the power, 2016-05-18 14:20:39]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-18 14:21:23]

Description was changed from

==========
Use SVGInlineTextMetricsIterator in updateLayoutAttributes

This reuses a pre-existing piece to do the "dual offset/variable"
iteration, hiding (and sharing) the complexity.

BUG=607906
==========

to

==========
Use SVGInlineTextMetricsIterator in updateLayoutAttributes

This reuses a pre-existing piece to do the "dual offset/variable"
iteration, hiding (and sharing) the complexity.

BUG=607906

Committed: https://crrev.com/7730dd28f370e4f0614b31af83fd600e81f1c18c
Cr-Commit-Position: refs/heads/master@{#394412}
==========

[commit-bot: I haz the power, 2016-05-18 14:21:24]

Patchset 1 (id:??) landed as
https://crrev.com/7730dd28f370e4f0614b31af83fd600e81f1c18c
Cr-Commit-Position: refs/heads/master@{#394412}