Source/WebCore: Not use anonymousContainer on beforeChild calculation

Source/WebCore: Not use anonymousContainer on beforeChild calculation
and let later code handle it. Fix style update on block-level
anonymous objects.
https://bugs.webkit.org/show_bug.cgi?id=67656

Reviewed by David Hyatt.

Test: fast/table/quote-text-around-iframe.html

* rendering/RenderTable.cpp:
(WebCore::RenderTable::addChild):
* rendering/RenderTableCell.cpp:
(WebCore::RenderTableCell::styleDidChange):
* rendering/RenderTableRow.cpp:
(WebCore::RenderTableRow::addChild):
* rendering/RenderObject.cpp:
(WebCore::RenderObject::propagateStyleToAnonymousChildren):

LayoutTests: Not use anonymousContainer on beforeChild calculation
and let later code handle it.
https://bugs.webkit.org/show_bug.cgi?id=67656

Reviewed by David Hyatt.

* fast/table/quote-text-around-iframe.html: Added.
* fast/table/table-row-style-not-updated-with-after-content-expected.txt:
* platform/mac/fast/table/quote-text-around-iframe-expected.png: Added.
* platform/mac/fast/table/quote-text-around-iframe-expected.txt: Added.
and lot of style propagation rebaselines.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@95671 268f45cc-cd09-0410-ab3c-d52691b4dbfc