[CSS Exclusions] Add CSS parsing support for image URI shape-inside and shape-outside values

Source/core/css/CSSParser.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 2720 matching lines @@
     case CSSPropertyWebkitShapeInside:
     case CSSPropertyWebkitShapeOutside:
         if (!RuntimeEnabledFeatures::cssExclusionsEnabled())
             return false;
         if (id == CSSValueAuto)
             validPrimitive = true;
         else if (propId == CSSPropertyWebkitShapeInside && id == CSSValueOutsideShape)
             validPrimitive = true;
         else if (value->unit == CSSParserValue::Function)
             return parseBasicShape(propId, important);
+        else if (value->unit == CSSPrimitiveValue::CSS_URI) {
+            parsedValue = CSSImageValue::create(completeURL(value->string));
+            m_valueList->next();
+        }
         break;
     case CSSPropertyWebkitShapeMargin:
     case CSSPropertyWebkitShapePadding:
         validPrimitive = (RuntimeEnabledFeatures::cssExclusionsEnabled() && !id && validUnit(value, FLength | FNonNeg));
         break;
     case CSSPropertyBorderBottomStyle:
     case CSSPropertyBorderCollapse:
     case CSSPropertyBorderLeftStyle:
     case CSSPropertyBorderRightStyle:
     case CSSPropertyBorderTopStyle:
@@ skipping 9003 matching lines @@
 {
     // The tokenizer checks for the construct of an+b.
     // However, since the {ident} rule precedes the {nth} rule, some of those
     // tokens are identified as string literal. Furthermore we need to accept
     // "odd" and "even" which does not match to an+b.
     return equalIgnoringCase(token, "odd") || equalIgnoringCase(token, "even")
         || equalIgnoringCase(token, "n") || equalIgnoringCase(token, "-n");
 }
 
 }