Build WTF as dll in component build

Source/wtf/MD5.h

 /*
  * Copyright (C) 2010 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * 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 WTF_MD5_h
 #define WTF_MD5_h
 
-#include <wtf/Vector.h>
+#include "wtf/Vector.h"
+#include "wtf/WTFExport.h"
 
 namespace WTF {
 
-class MD5 {
+class WTF_EXPORT MD5 {
 public:
     MD5();
 
     void addBytes(const Vector<uint8_t>& input)
     {
         addBytes(input.data(), input.size());
     }
     void addBytes(const uint8_t* input, size_t length);
 
     // checksum has a side effect of resetting the state of the object.
     void checksum(Vector<uint8_t, 16>&);
 
 private:
     uint32_t m_buf[4];
     uint32_t m_bits[2];
     uint8_t m_in[64];
 };
 
 } // namespace WTF
 
 using WTF::MD5;
 
 #endif // WTF_MD5_h