Build WTF as dll in component build

Source/wtf/MainThread.cpp

 /*
 * Copyright (C) 2009 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 16 matching lines @@
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
 #include "config.h"
 #include "wtf/MainThread.h"
 
 #include "wtf/Assertions.h"
 #include "wtf/Functional.h"
 #include "wtf/Threading.h"
-#include <public/Platform.h>
 
 namespace WTF {
 
 static ThreadIdentifier mainThreadIdentifier;
+static void (*callOnMainThreadFunction)(MainThreadFunction, void*);
 
-void initializeMainThread()
+void initializeMainThread(void (*function)(MainThreadFunction, void*))
 {
     static bool initializedMainThread;
     if (initializedMainThread)
         return;
     initializedMainThread = true;
+    callOnMainThreadFunction = function;
 
     mainThreadIdentifier = currentThread();
 }
 
 void callOnMainThread(MainThreadFunction* function, void* context)
 {
-    WebKit::Platform::current()->callOnMainThread(function, context);
+    (*callOnMainThreadFunction)(function, context);
 }
 
 static void callFunctionObject(void* context)
 {
     Function<void()>* function = static_cast<Function<void()>*>(context);
     (*function)();
     delete function;
 }
 
 void callOnMainThread(const Function<void()>& function)
 {
     callOnMainThread(callFunctionObject, new Function<void()>(function));
 }
 
 bool isMainThread()
 {
     return currentThread() == mainThreadIdentifier;
 }
 
 } // namespace WTF