Build WTF as dll in component build

Source/wtf/text/TextEncodingRegistry.h

Index: Source/wtf/text/TextEncodingRegistry.h
diff --git a/Source/wtf/text/TextEncodingRegistry.h b/Source/wtf/text/TextEncodingRegistry.h
index b01f8403e196a93476b79b95545a0b1af8ee3a3b..7b7227d0775fc868ba84639848d506f11a1f3756 100644
--- a/Source/wtf/text/TextEncodingRegistry.h
+++ b/Source/wtf/text/TextEncodingRegistry.h
@@ -27,9 +27,10 @@
 #define TextEncodingRegistry_h
 
 #include <memory>
-#include <wtf/PassOwnPtr.h>
-#include <wtf/text/WTFString.h>
-#include <wtf/unicode/Unicode.h>
+#include "wtf/PassOwnPtr.h"
+#include "wtf/WTFExport.h"
+#include "wtf/text/WTFString.h"
+#include "wtf/unicode/Unicode.h"
 
 namespace WTF {
 
@@ -38,7 +39,7 @@ class TextEncoding;
 
 // Use TextResourceDecoder::decode to decode resources, since it handles BOMs.
 // Use TextEncoding::encode to encode, since it takes care of normalization.
-PassOwnPtr<TextCodec> newTextCodec(const TextEncoding&);
+WTF_EXPORT PassOwnPtr<TextCodec> newTextCodec(const TextEncoding&);
 
 // Only TextEncoding should use the following functions directly.
 const char* atomicCanonicalTextEncodingName(const char* alias);