Add support for menclose element

Add support for menclose element
https://bugs.webkit.org/show_bug.cgi?id=85729

Patch by Gurpreet Kaur <k.gurpreet@samsung.com> on 2014-01-28
Reviewed by Chris Fleizach.

Source/WebCore:

Added support for menclose element. MathML <menclose> element renders
its content inside an enclosing notation specified by the notation
attribute. The notation attribute can have values longdiv, box, left,
right, top, bottom , radical, madruwb, actuarial, roundedbox, circle,
updiagonalstrike, downdiagonalstrike, verticalstrike and
horizontalstrike.

Tests: mathml/presentation/menclose-add-children.html
       mathml/presentation/menclose-notation-attribute-add.html
       mathml/presentation/menclose-notation-attribute-change-value.html
       mathml/presentation/menclose-notation-attribute-remove.html
       mathml/presentation/menclose-notation-attribute-set1.html
       mathml/presentation/menclose-notation-attribute-set2.html
       mathml/presentation/menclose-notation-no-overlap.html
       mathml/presentation/menclose-notation-radical.html
       mathml/presentation/menclose-remove-children.html

* CMakeLists.txt:
* GNUmakefile.list.am:
* WebCore.vcxproj/WebCore.vcxproj:
* WebCore.vcxproj/WebCore.vcxproj.filters:
* WebCore.xcodeproj/project.pbxproj:
* css/mathml.css:
(mo, mrow, mfenced, mfrac, msub, msup, msubsup, mmultiscripts, mprescripts, none, munder, mover, munderover, msqrt, mroot, merror, mphantom, mstyle, menclose):
(math, mrow, mfenced, msqrt, mroot, merror, mphantom, mstyle, menclose):
* mathml/MathMLAllInOne.cpp:
* mathml/MathMLElement.h:
* mathml/MathMLInlineContainerElement.cpp:
* mathml/MathMLMencloseElement.cpp: Added.
(WebCore::MathMLMencloseElement::MathMLMencloseElement):
(WebCore::MathMLMencloseElement::create):
(WebCore::MathMLMencloseElement::createElementRenderer):
(WebCore::MathMLMencloseElement::isPresentationAttribute):
(WebCore::MathMLMencloseElement::finishParsingChildren):
(WebCore::MathMLMencloseElement::collectStyleForPresentationAttribute):
(WebCore::MathMLMencloseElement::longDivLeftPadding):
* mathml/MathMLMencloseElement.h: Added.
(WebCore::toMathMLMencloseElement):
* mathml/mathattrs.in:
* mathml/mathtags.in:
* rendering/mathml/RenderMathMLMenclose.cpp: Added.
(WebCore::RenderMathMLMenclose::RenderMathMLMenclose):
(WebCore::RenderMathMLMenclose::addChild):
(WebCore::RenderMathMLMenclose::computePreferredLogicalWidths):
(WebCore::RenderMathMLMenclose::updateLogicalHeight):
(WebCore::RenderMathMLMenclose::paint):
(WebCore::RenderMathMLMenclose::checkNotationalValuesValidity):
* rendering/mathml/RenderMathMLMenclose.h: Added.
* rendering/mathml/RenderMathMLRoot.cpp:
(WebCore::RenderMathMLRoot::RenderMathMLRoot):
* rendering/mathml/RenderMathMLRoot.h:
* rendering/mathml/RenderMathMLSquareRoot.cpp:
(WebCore::RenderMathMLSquareRoot::RenderMathMLSquareRoot):
(WebCore::RenderMathMLSquareRoot::createAnonymousWithParentRenderer):
* rendering/mathml/RenderMathMLSquareRoot.h:
Added new file related to menclose element implementation. Menclose
element is created and while parsing its notation attribute based on
its values like top, left CSSBorder properties are applied and for
values like circle, verticalstrike, longidv its taken care in paint.
For radical value an anonymous RenderMathMLSquareRoot is created as
a child of menclose.

LayoutTests:

* mathml/presentation/inferred-mrow-baseline-expected.txt:
* mathml/presentation/inferred-mrow-baseline.html:
* mathml/presentation/inferred-mrow-stretchy-expected.txt:
* mathml/presentation/inferred-mrow-stretchy.html:
Rebaselining existing tests as per the new behavior.

* mathml/presentation/menclose-add-children-expected.html: Added.
* mathml/presentation/menclose-add-children.html: Added.
* mathml/presentation/menclose-notation-attribute-add-expected.html: Added.
* mathml/presentation/menclose-notation-attribute-add.html: Added.
* mathml/presentation/menclose-notation-attribute-change-value-expected.html: Added.
* mathml/presentation/menclose-notation-attribute-change-value.html: Added.
* mathml/presentation/menclose-notation-attribute-remove-expected.html: Added.
* mathml/presentation/menclose-notation-attribute-remove.html: Added.
* mathml/presentation/menclose-notation-attribute-set1-expected.txt: Added.
* mathml/presentation/menclose-notation-attribute-set1.html: Added.
* mathml/presentation/menclose-notation-attribute-set2-expected-mismatch.html: Added.
* mathml/presentation/menclose-notation-attribute-set2.html: Added.
* mathml/presentation/menclose-notation-no-overlap-expected.txt: Added.
* mathml/presentation/menclose-notation-no-overlap.html: Added.
* mathml/presentation/menclose-notation-radical-expected.html: Added.
* mathml/presentation/menclose-notation-radical.html: Added.
* mathml/presentation/menclose-remove-children-expected.html: Added.
* mathml/presentation/menclose-remove-children.html: Added.
Added new test cases for verifying the behaviour of menclose element
with different values of notation attribute and removing/changing/adding
notation attribute.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@162933 268f45cc-cd09-0410-ab3c-d52691b4dbfc