Rename WebCore namespace to blink in Platform

Source/platform/LengthBox.h

 /*
     Copyright (C) 1999 Lars Knoll (knoll@kde.org)
     Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
     Copyright (c) 2012, Google 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 LengthBox_h
 #define LengthBox_h
 
 #include "platform/Length.h"
 #include "platform/PlatformExport.h"
 #include "platform/text/TextDirection.h"
 #include "platform/text/WritingMode.h"
 
-namespace WebCore {
+namespace blink {
 
 class RenderStyle;
 
 class PLATFORM_EXPORT LengthBox {
 public:
     LengthBox()
     {
     }
 
     LengthBox(LengthType t)
@@ skipping 56 matching lines @@
         return !(m_left.isZero() && m_right.isZero() && m_top.isZero() && m_bottom.isZero());
     }
 
     // Must be public for SET_VAR in RenderStyle.h
     Length m_left;
     Length m_right;
     Length m_top;
     Length m_bottom;
 };
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // LengthBox_h