Parse media attributes and CSSOM media text as media_query_list.

Source/core/css/CSSGrammar.y.in

Index: Source/core/css/CSSGrammar.y.in
diff --git a/Source/core/css/CSSGrammar.y.in b/Source/core/css/CSSGrammar.y.in
index 008756f09231fa0a51fe087b31269f7845bcee65..31f7fe781f1759860640e80e1b4288f93f8012f0 100644
--- a/Source/core/css/CSSGrammar.y.in
+++ b/Source/core/css/CSSGrammar.y.in
@@ -125,12 +125,12 @@ static inline bool isCSSTokenAString(int yytype)
 %token NAMESPACE_SYM
 %token VARFUNCTION
 %token INTERNAL_DECLS_SYM
+%token INTERNAL_MEDIALIST_SYM
 %token INTERNAL_RULE_SYM
 %token INTERNAL_SELECTOR_SYM
 %token INTERNAL_VALUE_SYM
 %token WEBKIT_KEYFRAME_RULE_SYM
 %token WEBKIT_KEYFRAMES_SYM
-%token WEBKIT_MEDIAQUERY_SYM
 %token WEBKIT_REGION_RULE_SYM
 %token WEBKIT_VIEWPORT_RULE_SYM
 %token WEBKIT_SUPPORTS_CONDITION_SYM
@@ -327,7 +327,7 @@ stylesheet:
   | internal_rule maybe_space
   | internal_selector maybe_space
   | internal_value maybe_space
-  | webkit_mediaquery maybe_space
+  | internal_medialist
   | webkit_keyframe_rule maybe_space
   | webkit_supports_condition maybe_space
   ;
@@ -362,10 +362,10 @@ internal_value:
     }
 ;
 
-webkit_mediaquery:
-     WEBKIT_MEDIAQUERY_SYM maybe_space valid_media_query '}' {
-         parser->m_mediaQuery = parser->sinkFloatingMediaQuery($3);
-     }
+internal_medialist:
+    INTERNAL_MEDIALIST_SYM maybe_space maybe_media_list TOKEN_EOF {

[SeRya, 2013/06/10 12:11:47]

Apparently syntax change used to support autoclosing all sorts of blocks. I've
seen the spec proposal regarding autoclosing in stylesheets. But I still
uncertain about other places. For instance it doesn't work with querySelectors
(document.querySelectorAll('[hidden'); throws an exception). Are you sure the
spec requires it in this context?

[rune, 2013/06/10 19:53:07]

Not explicit as far as I can see, but it seems it will be more explicit the way
it's written in CSS3 Syntax. The official w3c test suite contains test cases
where auto-closing is expected and it uses setAttribute on the media attribute
for the style element. According to the implementation report this passes in
Gecko, Presto, and Trident.

When it comes to querySelector, both Gecko and Presto do auto-close for
querySelector. I tried to contain media query changes in this patch, so I didn't
address auto-close for other rules.

+        parser->m_mediaList = $3;
+    }
 ;
 
 internal_selector: