Implement all shorthand property.

Source/core/css/CSSProperty.cpp

Index: Source/core/css/CSSProperty.cpp
diff --git a/Source/core/css/CSSProperty.cpp b/Source/core/css/CSSProperty.cpp
index 3d3459eb8244bafefc8bda51160a2980a9b229e8..557bd315c74b89308584e4cb225a186128523ce2 100644
--- a/Source/core/css/CSSProperty.cpp
+++ b/Source/core/css/CSSProperty.cpp
@@ -674,6 +674,7 @@ bool CSSProperty::isInheritedProperty(CSSPropertyID propertyID)
     case CSSPropertyUserZoom:
     case CSSPropertyZIndex:
     case CSSPropertyZoom:
+    case CSSPropertyAll:
         return false;
     case CSSPropertyInvalid:
         ASSERT_NOT_REACHED();
@@ -683,4 +684,18 @@ bool CSSProperty::isInheritedProperty(CSSPropertyID propertyID)
     return false;
 }
 
+bool CSSProperty::isAffectedByAllProperty(CSSPropertyID propertyID)
+{
+    if (propertyID == CSSPropertyAll)
+        return false;
+
+    // all shorthand spec says:
+    // The all property is a shorthand that resets all CSS properties except
+    // direction and unicode-bidi. It only accepts the CSS-wide keywords.
+    // c.f. http://dev.w3.org/csswg/css-cascade/#all-shorthand
+    // So CSSPropertyUnicodeBidi and CSSPropertyDirection are not
+    // affected by all property.
+    return propertyID != CSSPropertyUnicodeBidi && propertyID != CSSPropertyDirection;
+}
+
 } // namespace WebCore