Rename WebCore namespace to blink in Platform

Source/platform/graphics/GraphicsLayerDebugInfo.cpp

 /*
  * Copyright (C) 2014 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.
  */
 
 #include "config.h"
 
 #include "platform/graphics/GraphicsLayerDebugInfo.h"
 
 #include "wtf/text/CString.h"
 
-namespace WebCore {
+namespace blink {
 
 GraphicsLayerDebugInfo::GraphicsLayerDebugInfo()
     : m_compositingReasons(CompositingReasonNone)
 {
 }
 
 GraphicsLayerDebugInfo::~GraphicsLayerDebugInfo() { }
 
 void GraphicsLayerDebugInfo::appendAsTraceFormat(blink::WebString* out) const
 {
@@ skipping 52 matching lines @@
 }
 
 void GraphicsLayerDebugInfo::appendOwnerNodeId(JSONObject* jsonObject) const
 {
     if (!m_ownerNodeId)
         return;
 
     jsonObject->setNumber("owner_node", m_ownerNodeId);
 }
 
-} // namespace WebCore
+} // namespace blink