[CSS Grid Layout] Implement 'justify-self' parsing

Source/core/css/resolver/StyleBuilderCustom.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
@@ skipping 1847 matching lines @@
             return;
         }
 
         CSSGridTemplateValue* gridTemplateValue = toCSSGridTemplateValue(value);
         state.style()->setNamedGridArea(gridTemplateValue->gridAreaMap());
         state.style()->setNamedGridAreaRowCount(gridTemplateValue->rowCount());
         state.style()->setNamedGridAreaColumnCount(gridTemplateValue->columnCount());
         return;
     }
 
+    case CSSPropertyJustifySelf: {
+        HANDLE_INHERIT_AND_INITIAL(justifySelf, JustifySelf);
+        CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
+        if (Pair* pairValue = primitiveValue->getPairValue()) {
+            state.style()->setJustifySelf(*pairValue->first());
+            state.style()->setJustifySelfOverflowAlignment(*pairValue->second());
+        } else {
+            state.style()->setJustifySelf(*primitiveValue);
+        }
+        return;
+    }
+
     // These properties are aliased and we already applied the property on the prefixed version.
     case CSSPropertyAnimationDelay:
     case CSSPropertyAnimationDirection:
     case CSSPropertyAnimationDuration:
     case CSSPropertyAnimationFillMode:
     case CSSPropertyAnimationIterationCount:
     case CSSPropertyAnimationName:
     case CSSPropertyAnimationPlayState:
     case CSSPropertyAnimationTimingFunction:
     case CSSPropertyTransitionDelay:
@@ skipping 428 matching lines @@
         break;
     }
     case CSSPropertyEnableBackground:
         // Silently ignoring this property for now
         // http://bugs.webkit.org/show_bug.cgi?id=6022
         break;
     }
 }
 
 } // namespace WebCore