Implement CSS4 pseudo-class :dir()

third_party/WebKit/Source/core/css/CSSSelector.cpp

Index: third_party/WebKit/Source/core/css/CSSSelector.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSSelector.cpp b/third_party/WebKit/Source/core/css/CSSSelector.cpp
index f660e57faa3644ad688fd21665facfa3100c9665..342892e391f4e404095f0e8e53433933ebb4d4c8 100644
--- a/third_party/WebKit/Source/core/css/CSSSelector.cpp
+++ b/third_party/WebKit/Source/core/css/CSSSelector.cpp
@@ -232,6 +232,7 @@ PseudoId CSSSelector::pseudoId(PseudoType type)
     case PseudoIndeterminate:
     case PseudoTarget:
     case PseudoLang:
+    case PseudoDir:
     case PseudoNot:
     case PseudoRoot:
     case PseudoScope:
@@ -360,6 +361,7 @@ const static NameToPseudoStruct pseudoTypeWithoutArgumentsMap[] = {
 const static NameToPseudoStruct pseudoTypeWithArgumentsMap[] = {
 {"-webkit-any",      CSSSelector::PseudoAny},
 {"cue",              CSSSelector::PseudoCue},
+{"dir",              CSSSelector::PseudoDir},
 {"host",             CSSSelector::PseudoHost},
 {"host-context",     CSSSelector::PseudoHostContext},
 {"lang",             CSSSelector::PseudoLang},
@@ -523,6 +525,7 @@ void CSSSelector::updatePseudoType(const AtomicString& value, bool hasArguments)
     case PseudoIndeterminate:
     case PseudoInvalid:
     case PseudoLang:
+    case PseudoDir:
     case PseudoLastChild:
     case PseudoLastOfType:
     case PseudoLink:
@@ -642,6 +645,10 @@ String CSSSelector::selectorText(const String& rightSide) const
                 str.append(cs->argument());
                 str.append(')');
                 break;
+            case PseudoDir:
+                str.append('(');
+                str.append(cs->argument());
+                str.append(')');
             case PseudoNot:
                 ASSERT(cs->selectorList());
                 break;