CSS parsing recovery in function.

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 f9cd738e00f12c95fb974a0efce3b85bccd5d959..53aa5c6d41e3ada03c62ec562fda78ae8b8ab3df 100644
--- a/Source/core/css/CSSGrammar.y.in
+++ b/Source/core/css/CSSGrammar.y.in
@@ -87,7 +87,7 @@ static inline bool isCSSTokenAString(int yytype)
 
 %}
 
-%expect 33
+%expect 32
 
 %nonassoc LOWEST_PREC
 
@@ -1678,13 +1678,13 @@ term:
       $$.unit = CSSPrimitiveValue::CSS_VARIABLE_NAME;
   }
   /* FIXME: according to the specs a function can have a unary_operator in front. I know no case where this makes sense */
-  | function {
+  | function maybe_space {
       $$ = $1;
   }
-  | calc_function {
+  | calc_function maybe_space {
       $$ = $1;
   }
-  | min_or_max_function {
+  | min_or_max_function maybe_space {
       $$ = $1;
   }
   | '%' maybe_space { /* Handle width: %; */
@@ -1732,7 +1732,7 @@ unary_term:
   ;
 
 function:
-    FUNCTION maybe_space expr closing_parenthesis maybe_space {
+    FUNCTION maybe_space expr closing_parenthesis {
         CSSParserFunction* f = parser->createFloatingFunction();
         f->name = $1;
         f->args = parser->sinkFloatingValueList($3);
@@ -1740,7 +1740,7 @@ function:
         $$.unit = CSSParserValue::Function;
         $$.function = f;
     } |
-    FUNCTION maybe_space closing_parenthesis maybe_space {
+    FUNCTION maybe_space closing_parenthesis {
         CSSParserFunction* f = parser->createFloatingFunction();
         f->name = $1;
         CSSParserValueList* valueList = parser->createFloatingValueList();
@@ -1749,7 +1749,7 @@ function:
         $$.unit = CSSParserValue::Function;
         $$.function = f;
     } |
-    FUNCTION maybe_space error {
+    FUNCTION maybe_space expr_recovery closing_parenthesis {
         CSSParserFunction* f = parser->createFloatingFunction();
         f->name = $1;
         f->args = nullptr;
@@ -1860,7 +1860,7 @@ calc_func_expr_list:
   ;
 
 calc_function:
-    CALCFUNCTION maybe_space calc_func_expr calc_maybe_space ')' maybe_space {
+    CALCFUNCTION maybe_space calc_func_expr calc_maybe_space ')' {
         CSSParserFunction* f = parser->createFloatingFunction();
         f->name = $1;
         f->args = parser->sinkFloatingValueList($3);
@@ -1868,7 +1868,7 @@ calc_function:
         $$.unit = CSSParserValue::Function;
         $$.function = f;
     }
-    | CALCFUNCTION maybe_space error {
+    | CALCFUNCTION maybe_space expr_recovery closing_parenthesis {
         YYERROR;
     }
     ;
@@ -1884,7 +1884,7 @@ min_or_max:
     ;
 
 min_or_max_function:
-    min_or_max maybe_space calc_func_expr_list ')' maybe_space {
+    min_or_max maybe_space calc_func_expr_list ')' {
         CSSParserFunction* f = parser->createFloatingFunction();
         f->name = $1;
         f->args = parser->sinkFloatingValueList($3);
@@ -1892,7 +1892,7 @@ min_or_max_function:
         $$.unit = CSSParserValue::Function;
         $$.function = f;
     } 
-    | min_or_max maybe_space error {
+    | min_or_max maybe_space expr_recovery closing_parenthesis {
         YYERROR;
     }
     ;