Move TextStream to Source/platform/text/

Source/platform/text/TextStream.h

 /*
  * Copyright (C) 2004, 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef TextStream_h
 #define TextStream_h
 
+#include "platform/PlatformExport.h"
 #include "wtf/Forward.h"
 #include "wtf/text/StringBuilder.h"
 #include "wtf/unicode/Unicode.h"
 
 namespace WebCore {
 
-class TextStream {
+class PLATFORM_EXPORT TextStream {
 public:
     struct FormatNumberRespectingIntegers {
         FormatNumberRespectingIntegers(double number) : value(number) { }
         double value;
     };
 
     TextStream& operator<<(bool);
     TextStream& operator<<(int);
     TextStream& operator<<(unsigned);
     TextStream& operator<<(long);
     TextStream& operator<<(unsigned long);
     TextStream& operator<<(long long);
     TextStream& operator<<(unsigned long long);
     TextStream& operator<<(float);
     TextStream& operator<<(double);
     TextStream& operator<<(const char*);
     TextStream& operator<<(const void*);
     TextStream& operator<<(const String&);
     TextStream& operator<<(const FormatNumberRespectingIntegers&);
 
     String release();
 
 private:
     StringBuilder m_text;
 };
 
 }
 
 #endif