Not able to set width using ColGroup in the table.

Source/core/rendering/RenderTableCol.cpp

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 135 matching lines @@
     if (RenderObject* firstChild = this->firstChild())
         return toRenderTableCol(firstChild);
 
     // Otherwise it's the next column along.
     RenderObject* next = nextSibling();
 
     // Failing that, the child is the last column in a column-group, so the next column is the next column/column-group after its column-group.
     if (!next && parent()->isRenderTableCol())
         next = parent()->nextSibling();
 
-    for (; next && !next->isRenderTableCol(); next = next->nextSibling()) {
-        // We allow captions mixed with columns and column-groups.
-        if (next->isTableCaption())
-            continue;
-
-        return 0;
-    }
+    for (; next && !next->isRenderTableCol(); next = next->nextSibling()) { }
 
     return toRenderTableCol(next);
 }
 
 const BorderValue& RenderTableCol::borderAdjoiningCellStartBorder(const RenderTableCell*) const
 {
     return style()->borderStart();
 }
 
 const BorderValue& RenderTableCol::borderAdjoiningCellEndBorder(const RenderTableCell*) const
 {
     return style()->borderEnd();
 }
 
 const BorderValue& RenderTableCol::borderAdjoiningCellBefore(const RenderTableCell* cell) const
 {
     ASSERT_UNUSED(cell, table()->colElement(cell->col() + cell->colSpan()) == this);
     return style()->borderStart();
 }
 
 const BorderValue& RenderTableCol::borderAdjoiningCellAfter(const RenderTableCell* cell) const
 {
     ASSERT_UNUSED(cell, table()->colElement(cell->col() - 1) == this);
     return style()->borderEnd();
 }
 
 }