Build WTF as dll in component build

Source/wtf/CurrentTime.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2008 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.
@@ skipping 16 matching lines @@
  * 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 CurrentTime_h
 #define CurrentTime_h
 
 #include <time.h>
 
+#include "wtf/WTFExport.h"
+
 namespace WTF {
 
 // Returns the current UTC time in seconds, counted from January 1, 1970.
 // Precision varies depending on platform but is usually as good or better
 // than a millisecond.
-double currentTime();
+WTF_EXPORT double currentTime();
 
 // Same thing, in milliseconds.
 inline double currentTimeMS()
 {
     return currentTime() * 1000.0;
 }
 
 // Provides a monotonically increasing time in seconds since an arbitrary point in the past.
 // On unsupported platforms, this function only guarantees the result will be non-decreasing.
-double monotonicallyIncreasingTime();
+WTF_EXPORT double monotonicallyIncreasingTime();
+
+typedef double(*TimeFunction)(void);
+void setCurrentTimeFunction(TimeFunction);
+void setMonotonicallyIncreasingTimeFunction(TimeFunction);
+
 
 } // namespace WTF
 
 using WTF::currentTime;
 using WTF::currentTimeMS;
 using WTF::monotonicallyIncreasingTime;
 
 #endif // CurrentTime_h