Rename WebCore namespace to blink in Platform

Source/platform/plugins/PluginData.h

 /*
     Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
 
     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 PluginData_h
 #define PluginData_h
 
 #include "platform/PlatformExport.h"
 #include "wtf/RefCounted.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 
-namespace WebCore {
+namespace blink {
 
 class Page;
 struct PluginInfo;
 
 struct MimeClassInfo {
     String type;
     String desc;
     Vector<String> extensions;
 };
 
@@ skipping 33 matching lines @@
     Vector<size_t> m_mimePluginIndices;
 };
 
 // Checks if any of the plugins handle this extension, and if so returns the
 // plugin's mime type for this extension. Otherwise returns an empty string.
 PLATFORM_EXPORT String getPluginMimeTypeFromExtension(const String& extension);
 
 }
 
 #endif