frameborder="no" on frameset is ignored if border attribute set

frameborder="no" on frameset is ignored if border attribute set
https://bugs.webkit.org/show_bug.cgi?id=17767

Patch by Elliott Sprehn <esprehn@gmail.com> on 2012-06-28
Reviewed by Tony Chang.

Source/WebCore:

Fixes <frameset> frameborder and border handling. Previously we'd
override the frameborder=no setting if border was set. We also
treated frameborder="anything" the same as frameborder=0 since we
we just converted it to a number so frameborder=yes was incorrectly
treated the same as frameborder=no.

Tests: fast/frames/frameset-frameborder-boolean-values.html
       fast/frames/frameset-frameborder-inheritance.html
       fast/frames/frameset-frameborder-overrides-border.html

* html/HTMLFrameSetElement.cpp: Proper parsing of yes,no,1,0 values.
(WebCore::HTMLFrameSetElement::parseAttribute):
* html/HTMLFrameSetElement.h:
(WebCore::HTMLFrameSetElement::border): Border should be 0 if frameborder=no.

LayoutTests:

Add lots of tests for <frameset> frameborder and border handling.

* fast/frames/frameset-frameborder-boolean-values-expected.txt: Added.
* fast/frames/frameset-frameborder-boolean-values.html: Added.
* fast/frames/frameset-frameborder-inheritance-expected.txt: Added.
* fast/frames/frameset-frameborder-inheritance.html: Added.
* fast/frames/frameset-frameborder-overrides-border-expected.txt: Added.
* fast/frames/frameset-frameborder-overrides-border.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@121494 268f45cc-cd09-0410-ab3c-d52691b4dbfc