Do not add CSSPropertyBorderImage shorthand part of the property list when parsing CSS border property
https://bugs.webkit.org/show_bug.cgi?id=111481

Reviewed by Julien Chaffraix.

Source/WebCore:

After http://trac.webkit.org/changeset/135848 and more generally we do not
add shorthand directly into the property list used afterwards to build
StylePropertySet but we rather expand the shorthand to add the
longhands. CSSPropertyBorderImage is a shorthand and it should follow
that rule, so when we successfully parsed CSS border property and we
should reset border-image then we should reset the longhands too.

Test: LayoutTests/inspector/styles/styles-new-API-expected.txt which
reflects the fact that we add longhands instead of the shorthand. All
the other tests should not regress.

* css/CSSParser.cpp:
(WebCore::CSSParser::parseValue):

LayoutTests:

As now border-image is expanded when we sucessfully parsed a CSS border,
this test needs to be updated to reflect that the longhands are now
part of the declarated style.

* inspector/styles/styles-new-API-expected.txt:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144908 268f45cc-cd09-0410-ab3c-d52691b4dbfc