<rdar://problem/10196497> first-letter after list marker not updated correctly

<rdar://problem/10196497> first-letter after list marker not updated correctly

Reviewed by Simon Fraser.

Source/WebCore:

Test: fast/dynamic/first-letter-after-list-marker.html

* rendering/RenderBlock.cpp:
(WebCore::RenderBlock::updateFirstLetter): Improved the logic for continuing past list markers
when trying to locate a first letter to update.

LayoutTests:

* fast/dynamic/first-letter-after-list-marker-expected.png: Added.
* fast/dynamic/first-letter-after-list-marker-expected.txt: Added.
* fast/dynamic/first-letter-after-list-marker.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@96294 268f45cc-cd09-0410-ab3c-d52691b4dbfc