CSS 2.1 failure: table-columns-example-001 fails

CSS 2.1 failure: table-columns-example-001 fails
https://bugs.webkit.org/show_bug.cgi?id=83978

Reviewed by David Hyatt.

Source/WebCore:

Tests: css2.1/20110323/table-columns-example-001.html
       fast/css/table-rules-attribute-groups-with-frame.html
       fast/css/table-rules-attribute-groups.html
       fast/css/table-rules-attribute-none-with-frame.html
       fast/css/table-rules-attribute-with-frame1.html
       fast/css/table-rules-attribute-with-frame2.html
       fast/css/table-rules-attribute.html

WebKit does not implement the 'cols', 'rows', and 'all' rules attributes correctly
for cells that are adjacent to the table's edges. The solution is to follow the hint in the
spec at http://www.w3.org/TR/CSS21/tables.html#columns and set the table's border to
hidden when the rules attribute is set to one of 'cols', 'rows' or 'all', and the table itself
has no explicit border. Border collapsing will take care of the rest as 'hidden' always wins in
border-conflict resolution. It's not completely clear from the spec that an explicit table border
should trump a cols rule but doing so is consistent with FF and Opera at least. A 'rules' attribute
is trumped by anything specified for the 'frame' attribute so need to ensure that is respected too.

In short, any 'rules' attribute means a hidden table border unless there's a frame or border attribute.

* html/HTMLTableElement.cpp:
(WebCore::HTMLTableElement::additionalAttributeStyle):

LayoutTests:

* css2.1/20110323/table-columns-example-001-expected.html: Added.
* css2.1/20110323/table-columns-example-001.htm: Added.
* fast/css/table-rules-attribute-expected.html: Added.
* fast/css/table-rules-attribute-groups-expected.html: Added.
* fast/css/table-rules-attribute-groups-with-frame-expected.png: Added.
* fast/css/table-rules-attribute-groups-with-frame-expected.txt: Added.
* fast/css/table-rules-attribute-groups-with-frame.html: Added.
* fast/css/table-rules-attribute-groups.html: Added.
* fast/css/table-rules-attribute-none-with-frame-expected.html: Added.
* fast/css/table-rules-attribute-none-with-frame.html: Added.
* fast/css/table-rules-attribute-with-frame1-expected.png: Added.
* fast/css/table-rules-attribute-with-frame1-expected.txt: Added.
* fast/css/table-rules-attribute-with-frame1.html: Added.
* fast/css/table-rules-attribute-with-frame2-expected.png: Added.
* fast/css/table-rules-attribute-with-frame2-expected.txt: Added.
* fast/css/table-rules-attribute-with-frame2.html: Added.
  These test the correct interaction of a rules attribute with a frame attribute. 'cols' is used
  for the test, but each of cols, rows, and all have the same effect on the table's borders. It wasn't
  possible to create reftests for all of them because of the different behaviour of the frame attr to
  a simple border, probably due to painting order.
* fast/css/table-rules-attribute.html: Added.
  This tests correct rendering of the rules attribute on a table without its own border. It
  also tests border collapsing on tables with a rules attribute.
* platform/chromium-linux/tables/mozilla_expected_failures/collapsing_borders/bug41262-5-expected.png:
* platform/chromium-linux/tables/mozilla_expected_failures/collapsing_borders/bug41262-5-expected.txt:
   This is a progression - the table's border is hidden.
* platform/chromium/test_expectations.txt:
* platform/gtk/test_expectations.txt:
* platform/mac/Skipped:
* platform/mac/test_expectations.txt:
* platform/qt/test_expectations.txt:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@115091 268f45cc-cd09-0410-ab3c-d52691b4dbfc