Fix various inner classes now identified by the Blink GC plugin.

Source/core/css/parser/CSSPropertyParser.cpp

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  * Copyright (C) 2012 Intel Corporation. All rights reserved.
  *
@@ skipping 709 matching lines @@
     case CSSPropertyWebkitMaskSize:
     case CSSPropertyWebkitMaskRepeat:
     case CSSPropertyWebkitMaskRepeatX:
     case CSSPropertyWebkitMaskRepeatY:
     {
         RefPtrWillBeRawPtr<CSSValue> val1 = nullptr;
         RefPtrWillBeRawPtr<CSSValue> val2 = nullptr;
         CSSPropertyID propId1, propId2;
         bool result = false;
         if (parseFillProperty(propId, propId1, propId2, val1, val2)) {
-            OwnPtr<ShorthandScope> shorthandScope;
             if (propId == CSSPropertyBackgroundPosition ||
                 propId == CSSPropertyBackgroundRepeat ||
                 propId == CSSPropertyWebkitMaskPosition ||
                 propId == CSSPropertyWebkitMaskRepeat) {
-                shorthandScope = adoptPtr(new ShorthandScope(this, propId));
+                ShorthandScope scope(this, propId);
+                addProperty(propId1, val1.release(), important);
+                if (val2)
+                    addProperty(propId2, val2.release(), important);
+            } else {
+                addProperty(propId1, val1.release(), important);
+                if (val2)
+                    addProperty(propId2, val2.release(), important);
             }
-            addProperty(propId1, val1.release(), important);
-            if (val2)
-                addProperty(propId2, val2.release(), important);
             result = true;
         }
         m_implicitShorthand = false;
         return result;
     }
     case CSSPropertyObjectPosition:
         return RuntimeEnabledFeatures::objectFitPositionEnabled() && parseObjectPosition(important);
     case CSSPropertyListStyleImage:     // <uri> | none | inherit
     case CSSPropertyBorderImageSource:
     case CSSPropertyWebkitMaskBoxImageSource:
@@ skipping 7487 matching lines @@
         parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueFill));
     if (!seenStroke)
         parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueStroke));
     if (!seenMarkers)
         parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueMarkers));
 
     return parsedValues.release();
 }
 
 } // namespace WebCore