- Move code in HaveFirstLetter*() methods to a more generic method
HasPseudoStyle() to expand it's use, and make those methods call it.
- Added static method RemoveGeneratedContentFrameSiblings(), which
is now called from ContentRemoved(), to remove any sibling :before
and :after frames for a given frame.
r=attinasi@netscape.com (also looked at by rbs@maths.uq.edu.au)
sr=waterson@netscape.com
git-svn-id: svn://10.0.0.236/trunk@108105 18797224-902f-48f8-a5cc-f745e15eee43