WTF::Vector: Enable static_asserts in a Vector constructor.

third_party/WebKit/Source/core/layout/line/RootInlineBox.h

 /*
  * Copyright (C) 2003, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef RootInlineBox_h
 #define RootInlineBox_h
 
+#include "core/layout/LayoutBox.h"
 #include "core/layout/api/LineLayoutItem.h"
 #include "core/layout/api/SelectionState.h"
 #include "core/layout/line/InlineFlowBox.h"
 #include "platform/text/BidiContext.h"
 #include "wtf/PtrUtil.h"
 #include <memory>
 
 namespace blink {
 
 class EllipsisBox;
@@ skipping 193 matching lines @@
   LayoutUnit m_lineBottom;
   LayoutUnit m_lineTopWithLeading;
   LayoutUnit m_lineBottomWithLeading;
   LayoutUnit m_selectionBottom;
   LayoutUnit m_paginationStrut;
 };
 
 }  // namespace blink
 
 #endif  // RootInlineBox_h