Remove display:run-in as per https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/_tHSX…

Source/core/css/CSSPrimitiveValueMappings.h

 /*
  * Copyright (C) 2007 Alexey Proskuryakov <ap@nypop.com>.
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2009 Jeff Schiller <codedread@gmail.com>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ skipping 1224 matching lines @@
     switch (e) {
     case INLINE:
         m_value.valueID = CSSValueInline;
         break;
     case BLOCK:
         m_value.valueID = CSSValueBlock;
         break;
     case LIST_ITEM:
         m_value.valueID = CSSValueListItem;
         break;
-    case RUN_IN:
-        m_value.valueID = CSSValueRunIn;
-        break;
     case COMPACT:
         m_value.valueID = CSSValueCompact;
         break;
     case INLINE_BLOCK:
         m_value.valueID = CSSValueInlineBlock;
         break;
     case TABLE:
         m_value.valueID = CSSValueTable;
         break;
     case INLINE_TABLE:
@@ skipping 3708 matching lines @@
         break;
     }
 
     ASSERT_NOT_REACHED();
     return TouchActionDelayNone;
 }
 
 }
 
 #endif