Build WTF as dll in component build

Source/wtf/RefCounted.h

Index: Source/wtf/RefCounted.h
diff --git a/Source/wtf/RefCounted.h b/Source/wtf/RefCounted.h
index 2c81f479628ce1473ee0c2e2b8e6a65f7303bbf4..0fb73784327bbca052132b925d62afaa11e1a07a 100644
--- a/Source/wtf/RefCounted.h
+++ b/Source/wtf/RefCounted.h
@@ -21,12 +21,13 @@
 #ifndef RefCounted_h
 #define RefCounted_h
 
-#include <wtf/Assertions.h>
-#include <wtf/FastAllocBase.h>
-#include <wtf/Noncopyable.h>
-#include <wtf/OwnPtr.h>
-#include <wtf/ThreadRestrictionVerifier.h>
-#include <wtf/UnusedParam.h>
+#include "wtf/Assertions.h"
+#include "wtf/FastAllocBase.h"
+#include "wtf/Noncopyable.h"
+#include "wtf/OwnPtr.h"
+#include "wtf/ThreadRestrictionVerifier.h"
+#include "wtf/UnusedParam.h"
+#include "wtf/WTFExport.h"
 
 namespace WTF {
 
@@ -39,7 +40,7 @@ namespace WTF {
 // This base class holds the non-template methods and attributes.
 // The RefCounted class inherits from it reducing the template bloat
 // generated by the compiler (technique called template hoisting).
-class RefCountedBase {
+class WTF_EXPORT RefCountedBase {
 public:
     void ref()
     {