Merge 164913 "Revert "Explicit space required around NOT/ONLY/AN..."

Source/core/css/CSSGrammar.y

 %{
 
 /*
  *  Copyright (C) 2002-2003 Lars Knoll (knoll@kde.org)
  *  Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  *  Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *  Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  *  Copyright (C) 2012 Intel Corporation. All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
@@ skipping 641 matching lines @@
     | '(' error error_recovery closing_parenthesis {
         YYERROR;
     }
     ;
 
 media_query_exp_list:
     media_query_exp {
         $$ = parser->createFloatingMediaQueryExpList();
         $$->append(parser->sinkFloatingMediaQueryExp($1));
     }
-    | media_query_exp_list space MEDIA_AND space media_query_exp {
+    | media_query_exp_list maybe_space MEDIA_AND maybe_space media_query_exp {
         $$ = $1;
         $$->append(parser->sinkFloatingMediaQueryExp($5));
     }
     ;
 
 maybe_and_media_query_exp_list:
     maybe_space {
         $$ = parser->createFloatingMediaQueryExpList();
     }
-    | space MEDIA_AND space media_query_exp_list maybe_space {
+    | maybe_space MEDIA_AND maybe_space media_query_exp_list maybe_space {
         $$ = $4;
     }
     ;
 
 maybe_media_restrictor:
     /*empty*/ {
         $$ = MediaQuery::None;
     }
-    | MEDIA_ONLY space {
+    | MEDIA_ONLY maybe_space {
         $$ = MediaQuery::Only;
     }
-    | MEDIA_NOT space {
+    | MEDIA_NOT maybe_space {
         $$ = MediaQuery::Not;
     }
     ;
 
 valid_media_query:
     media_query_exp_list maybe_space {
         $$ = parser->createFloatingMediaQuery(parser->sinkFloatingMediaQueryExpList($1));
     }
     | maybe_media_restrictor medium maybe_and_media_query_exp_list {
         parser->tokenToLowerCase($2);
@@ skipping 1288 matching lines @@
 
 rule_error_recovery:
     /* empty */
   | rule_error_recovery error
   | rule_error_recovery invalid_square_brackets_block
   | rule_error_recovery invalid_parentheses_block
     ;
 
 %%