Remove SVGTextLayoutEngine::m_pathLayoutBoxes

Remove SVGTextLayoutEngine::m_pathLayoutBoxes

Line boxes are added to this vector, and finalizeTransformMatrices()
iterates through it. The latter will however never do anything for
these line boxes, because layoutTextBoxes() is the only thing that adds
boxes to the map that will cause finalizeTransformMatrices() to have an
effect.

BUG=486669
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=195997

[fs, 2015-05-27 14:39:00]

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

[fs, 2015-05-27 14:39:02]

Bombardement! [1]

[1] https://www.youtube.com/watch?v=3m3ZkJTX1qY

[f(malita), 2015-05-27 14:55:01]

I'm not sure what m_pathLayoutBoxes' initial purpose was, but yeah - it
certainly doesn't seem to have any clients left at this point. LGTM!

[fs, 2015-05-27 15:04:46]

On 2015/05/27 14:55:01, f(malita) wrote:
> I'm not sure what m_pathLayoutBoxes' initial purpose was, but yeah - it
> certainly doesn't seem to have any clients left at this point. LGTM!

It's possible I'll be adding something back with a similar name - it'll then
serve a different purpose though...

[fs, 2015-05-27 15:05:20]

The CQ bit was checked by fs@opera.com

[commit-bot: I haz the power, 2015-05-27 15:06:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1157253002/1

[commit-bot: I haz the power, 2015-05-27 18:03:54]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=195997