Correct initial width/height for <use>d <symbol>s

Correct initial width/height for <use>d <symbol>s

The initial values for width/height on the <svg> generated for the
<symbol> should be "100%".
Since the <symbol> element had been replaced by a <svg> element by the
time the attributes were transferred the wrong set of rules were used.

Adjust svg/custom/use-attribute-invalidations.html to be correct.
svg/custom/relative-sized-shadow-tree-content-with-symbol.xhtml now
renders correctly.

BUG=592063
Committed: https://crrev.com/968291cbf64a457362eeaef67f380283541a2774
Cr-Commit-Position: refs/heads/master@{#379350}

[fs, 2016-03-04 20:10:43]

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

[Stephen Chennney, 2016-03-04 20:23:38]

lgtm

[fs, 2016-03-04 20:26:26]

The CQ bit was checked by fs@opera.com

[commit-bot: I haz the power, 2016-03-04 20:26:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1757993007/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1757993007/1

[commit-bot: I haz the power, 2016-03-04 20:54:55]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-04 20:56:13]

Description was changed from

==========
Correct initial width/height for <use>d <symbol>s

The initial values for width/height on the <svg> generated for the
<symbol> should be "100%".
Since the <symbol> element had been replaced by a <svg> element by the
time the attributes were transferred the wrong set of rules were used.

Adjust svg/custom/use-attribute-invalidations.html to be correct.
svg/custom/relative-sized-shadow-tree-content-with-symbol.xhtml now
renders correctly.

BUG=592063
==========

to

==========
Correct initial width/height for <use>d <symbol>s

The initial values for width/height on the <svg> generated for the
<symbol> should be "100%".
Since the <symbol> element had been replaced by a <svg> element by the
time the attributes were transferred the wrong set of rules were used.

Adjust svg/custom/use-attribute-invalidations.html to be correct.
svg/custom/relative-sized-shadow-tree-content-with-symbol.xhtml now
renders correctly.

BUG=592063

Committed: https://crrev.com/968291cbf64a457362eeaef67f380283541a2774
Cr-Commit-Position: refs/heads/master@{#379350}
==========

[commit-bot: I haz the power, 2016-03-04 20:56:14]

Patchset 1 (id:??) landed as
https://crrev.com/968291cbf64a457362eeaef67f380283541a2774
Cr-Commit-Position: refs/heads/master@{#379350}