CSS Motion Path: offset-anchor should default to auto

third_party/WebKit/Source/core/style/ComputedStyle.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 1415 matching lines @@
   }
   LengthPoint objectPosition() const {
     return m_rareNonInheritedData->m_objectPosition;
   }
   void setObjectPosition(LengthPoint position) {
     SET_VAR(m_rareNonInheritedData, m_objectPosition, position);
   }
 
   // offset-anchor
   static LengthPoint initialOffsetAnchor() {
-    return LengthPoint(Length(50.0, Percent), Length(50.0, Percent));
+    return LengthPoint(Length(Auto), Length(Auto));
   }
   const LengthPoint& offsetAnchor() const {
     return m_rareNonInheritedData->m_transform->m_motion.m_anchor;
   }
   void setOffsetAnchor(const LengthPoint& offsetAnchor) {
     SET_NESTED_VAR(m_rareNonInheritedData, m_transform, m_motion.m_anchor,
                    offsetAnchor);
   }
 
   // offset-distance
@@ skipping 2664 matching lines @@
   m_nonInheritedData.m_pseudoBits |= 1 << (pseudo - 1);
 }
 
 inline bool ComputedStyle::hasPseudoElementStyle() const {
   return m_nonInheritedData.m_pseudoBits & ElementPseudoIdMask;
 }
 
 }  // namespace blink
 
 #endif  // ComputedStyle_h