Remove support for -webkit-line-clamp

Source/core/css/CSSComputedStyleDeclaration.cpp

 /*
  * Copyright (C) 2004 Zack Rusin <zack@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2011 Sencha, Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ skipping 265 matching lines @@
     CSSPropertyGridColumnStart,
     CSSPropertyGridDefinitionColumns,
     CSSPropertyGridDefinitionRows,
     CSSPropertyGridRowEnd,
     CSSPropertyGridRowStart,
     CSSPropertyWebkitHighlight,
     CSSPropertyWebkitHyphenateCharacter,
     CSSPropertyWebkitLineAlign,
     CSSPropertyWebkitLineBoxContain,
     CSSPropertyWebkitLineBreak,
-    CSSPropertyWebkitLineClamp,
     CSSPropertyWebkitLineGrid,
     CSSPropertyWebkitLineSnap,
     CSSPropertyWebkitLocale,
     CSSPropertyWebkitMarginBeforeCollapse,
     CSSPropertyWebkitMarginAfterCollapse,
     CSSPropertyWebkitMaskBoxImage,
     CSSPropertyWebkitMaskBoxImageOutset,
     CSSPropertyWebkitMaskBoxImageRepeat,
     CSSPropertyWebkitMaskBoxImageSlice,
     CSSPropertyWebkitMaskBoxImageSource,
@@ skipping 1797 matching lines @@
         case CSSPropertyImageRendering:
             return CSSPrimitiveValue::create(style->imageRendering());
         case CSSPropertyIsolation:
             return cssValuePool().createValue(style->isolation());
         case CSSPropertyLeft:
             return valueForPositionOffset(style.get(), CSSPropertyLeft, renderer, m_node->document().renderView());
         case CSSPropertyLetterSpacing:
             if (!style->letterSpacing())
                 return cssValuePool().createIdentifierValue(CSSValueNormal);
             return zoomAdjustedPixelValue(style->letterSpacing(), style.get());
-        case CSSPropertyWebkitLineClamp:
-            if (style->lineClamp().isNone())
-                return cssValuePool().createIdentifierValue(CSSValueNone);
-            return cssValuePool().createValue(style->lineClamp().value(), style->lineClamp().isPercentage() ? CSSPrimitiveValue::CSS_PERCENTAGE : CSSPrimitiveValue::CSS_NUMBER);
         case CSSPropertyLineHeight:
             return valueForLineHeight(style.get(), m_node->document().renderView());
         case CSSPropertyListStyleImage:
             if (style->listStyleImage())
                 return style->listStyleImage()->cssValue();
             return cssValuePool().createIdentifierValue(CSSValueNone);
         case CSSPropertyListStylePosition:
             return cssValuePool().createValue(style->listStylePosition());
         case CSSPropertyListStyleType:
             return cssValuePool().createValue(style->listStyleType());
@@ skipping 1116 matching lines @@
     static const CSSPropertyID propertiesAfterSlashSeperator[3] = { CSSPropertyBackgroundSize, CSSPropertyBackgroundOrigin,
                                                                     CSSPropertyBackgroundClip };
 
     RefPtr<CSSValueList> list = CSSValueList::createSlashSeparated();
     list->append(valuesForShorthandProperty(StylePropertyShorthand(CSSPropertyBackground, propertiesBeforeSlashSeperator, WTF_ARRAY_LENGTH(propertiesBeforeSlashSeperator))));
     list->append(valuesForShorthandProperty(StylePropertyShorthand(CSSPropertyBackground, propertiesAfterSlashSeperator, WTF_ARRAY_LENGTH(propertiesAfterSlashSeperator))));
     return list.release();
 }
 
 } // namespace WebCore