https://bugs.webkit.org/show_bug.cgi?id=81850

Patch by David Barton <dbarton@mathscribe.com> on 2012-03-21
Reviewed by Eric Seidel.

This prepares these files for bug fixes, and eventually combining their common code. To
understand this patch, I suggest you start with RenderMathMLSquareRoot.cpp, as it's
simpler than RenderMathMLRoot.cpp.

No new tests. LayoutTests/mathml/presentation/roots.xhtml is thorough enough for this.

* rendering/mathml/RenderMathMLRoot.cpp:
(WebCore):
(WebCore::RenderMathMLRoot::addChild):
(WebCore::RenderMathMLRoot::paint):
(WebCore::RenderMathMLRoot::layout):
* rendering/mathml/RenderMathMLRoot.h:
(WebCore):
(RenderMathMLRoot):
* rendering/mathml/RenderMathMLSquareRoot.cpp:
(WebCore):
(WebCore::RenderMathMLSquareRoot::paint):
(WebCore::RenderMathMLSquareRoot::layout):
* rendering/mathml/RenderMathMLSquareRoot.h:
(WebCore):
(RenderMathMLSquareRoot):
* rendering/mathml/RenderMathMLSubSup.h:
(WebCore):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@111636 268f45cc-cd09-0410-ab3c-d52691b4dbfc