Support unknown property strings in transition-property

Source/core/css/resolver/CSSToStyleMap.cpp

 /*
  * 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 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.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 361 matching lines @@
         return AnimPlayStatePaused;
     ASSERT(toCSSPrimitiveValue(value)->getValueID() == CSSValueRunning);
     return AnimPlayStatePlaying;
 }
 
 CSSTransitionData::TransitionProperty CSSToStyleMap::mapAnimationProperty(CSSValue* value)
 {
     if (value->isInitialValue())
         return CSSTransitionData::initialProperty();
     CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
+    if (primitiveValue->isString())
+        return CSSTransitionData::TransitionProperty(primitiveValue->getStringValue());
     if (primitiveValue->getValueID() == CSSValueAll)
         return CSSTransitionData::TransitionProperty(CSSTransitionData::TransitionAll);
     if (primitiveValue->getValueID() == CSSValueNone)
         return CSSTransitionData::TransitionProperty(CSSTransitionData::TransitionNone);
     return CSSTransitionData::TransitionProperty(primitiveValue->getPropertyID());
 }
 
 PassRefPtr<TimingFunction> CSSToStyleMap::mapAnimationTimingFunction(CSSValue* value, bool allowStepMiddle)
 {
     // FIXME: We should probably only call into this function with a valid
@@ skipping 202 matching lines @@
         verticalRule = SpaceImageRule;
         break;
     default: // CSSValueRepeat
         verticalRule = RepeatImageRule;
         break;
     }
     image.setVerticalRule(verticalRule);
 }
 
 };