Source/WebCore: Style not updated for :before, :after content

Source/WebCore: Style not updated for :before, :after content
in ruby text.
https://bugs.webkit.org/show_bug.cgi?id=68625

Reviewed by Dave Hyatt.

Test: fast/ruby/ruby-text-before-after-content.html

* rendering/RenderRubyText.cpp:
(WebCore::RenderRubyText::updateBeforeAfterContent):
* rendering/RenderRubyText.h:

LayoutTests: Style not updated for :before, :after content
in ruby text.
https://bugs.webkit.org/show_bug.cgi?id=68625

Reviewed by Dave Hyatt.

* fast/ruby/ruby-text-before-after-content-expected.png: Added.
* fast/ruby/ruby-text-before-after-content-expected.txt: Added.
* fast/ruby/ruby-text-before-after-content.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@95857 268f45cc-cd09-0410-ab3c-d52691b4dbfc