Change class_as_selector-expected.html to be a ref-test

Change class_as_selector-expected.html to be a ref-test
https://bugs.webkit.org/show_bug.cgi?id=113970

Patch by Benjamin Poulain <bpoulain@apple.com> on 2013-04-04
Reviewed by Geoffrey Garen.

The test checks style can be applied to text with a CSS class.
The reference is done by applying a style attribute directly
on each element.

* css1/basic/class_as_selector-expected.html: Added.
* platform/efl/css1/basic/class_as_selector-expected.png: Removed.
* platform/efl/css1/basic/class_as_selector-expected.txt: Removed.
* platform/gtk/css1/basic/class_as_selector-expected.txt: Removed.
* platform/mac/css1/basic/class_as_selector-expected.png: Removed.
* platform/mac/css1/basic/class_as_selector-expected.txt: Removed.
* platform/qt/css1/basic/class_as_selector-expected.png: Removed.
* platform/qt/css1/basic/class_as_selector-expected.txt: Removed.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@147699 268f45cc-cd09-0410-ab3c-d52691b4dbfc