1 files changed, 9 insertions, 12 deletions
diff --git a/Source/WebCore/history/BackForwardController.h b/Source/WebCore/history/BackForwardController.h
index 638774643..60693d788 100644
--- a/Source/WebCore/history/BackForwardController.h
+++ b/Source/WebCore/history/BackForwardController.h
@@ -23,8 +23,7 @@
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef BackForwardController_h
-#define BackForwardController_h
+#pragma once
 
 #include <wtf/Noncopyable.h>
 #include <wtf/Forward.h>
@@ -39,25 +38,25 @@ class Page;
 class BackForwardController {
     WTF_MAKE_NONCOPYABLE(BackForwardController); WTF_MAKE_FAST_ALLOCATED;
 public:
-    BackForwardController(Page&, PassRefPtr<BackForwardClient>);
+    BackForwardController(Page&, Ref<BackForwardClient>&&);
     ~BackForwardController();
 
     BackForwardClient* client() const { return m_client.get(); }
 
-    bool canGoBackOrForward(int distance) const;
+    WEBCORE_EXPORT bool canGoBackOrForward(int distance) const;
     void goBackOrForward(int distance);
 
-    bool goBack();
-    bool goForward();
+    WEBCORE_EXPORT bool goBack();
+    WEBCORE_EXPORT bool goForward();
 
-    void addItem(PassRefPtr<HistoryItem>);
+    void addItem(Ref<HistoryItem>&&);
     void setCurrentItem(HistoryItem*);
         
     int count() const;
-    int backCount() const;
-    int forwardCount() const;
+    WEBCORE_EXPORT int backCount() const;
+    WEBCORE_EXPORT int forwardCount() const;
 
-    HistoryItem* itemAtIndex(int);
+    WEBCORE_EXPORT HistoryItem* itemAtIndex(int);
 
     void close();
 
@@ -71,5 +70,3 @@ private:
 };
 
 } // namespace WebCore
-
-#endif // BackForwardController_h