Made StylePropertySet::setProperty take a const CSSValue& instead of ptr

Made StylePropertySet::setProperty take a const CSSValue& instead of ptr

Made StylePropertySet::setProperty take a const CSSValue& instead of a
const CSSValue*. This is more semantically correct and safe since
StylePropertySets cannot store nullptrs, and is also an attempt to fix
a strange performance issue caused from introducing const CSSValue*s.

BUG=526586, 618674
Committed: https://crrev.com/e6a32634cfd6854cd84dc18b0572e922e4ae6cbc
Cr-Commit-Position: refs/heads/master@{#411504}

[sashab, 2016-08-11 08:30:09]

sashab@chromium.org changed reviewers:
+ rune@opera.com

[rune, 2016-08-11 09:13:23]

lgtm if it passes compile+test

[sashab, 2016-08-11 23:40:16]

The CQ bit was checked by sashab@chromium.org

[commit-bot: I haz the power, 2016-08-11 23:41:13]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-08-12 01:17:31]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-12 01:19:14]

Description was changed from

==========
Made StylePropertySet::setProperty take a const CSSValue& instead of ptr

Made StylePropertySet::setProperty take a const CSSValue& instead of a
const CSSValue*. This is more semantically correct and safe since
StylePropertySets cannot store nullptrs, and is also an attempt to fix
a strange performance issue caused from introducing const CSSValue*s.

BUG=526586,618674
==========

to

==========
Made StylePropertySet::setProperty take a const CSSValue& instead of ptr

Made StylePropertySet::setProperty take a const CSSValue& instead of a
const CSSValue*. This is more semantically correct and safe since
StylePropertySets cannot store nullptrs, and is also an attempt to fix
a strange performance issue caused from introducing const CSSValue*s.

BUG=526586,618674

Committed: https://crrev.com/e6a32634cfd6854cd84dc18b0572e922e4ae6cbc
Cr-Commit-Position: refs/heads/master@{#411504}
==========

[commit-bot: I haz the power, 2016-08-12 01:19:15]

Patchset 1 (id:??) landed as
https://crrev.com/e6a32634cfd6854cd84dc18b0572e922e4ae6cbc
Cr-Commit-Position: refs/heads/master@{#411504}