Split the frame tree logic out of HistoryItem

Source/core/loader/NavigationScheduler.cpp

Index: Source/core/loader/NavigationScheduler.cpp
diff --git a/Source/core/loader/NavigationScheduler.cpp b/Source/core/loader/NavigationScheduler.cpp
index e374a4e16cb84f8d0c29bdb1872a1df19fe0b9f3..a5974a9346a3dee58514915b199a30c90ac47a75 100644
--- a/Source/core/loader/NavigationScheduler.cpp
+++ b/Source/core/loader/NavigationScheduler.cpp
@@ -123,7 +123,7 @@ protected:
         m_haveToldClient = true;
 
         OwnPtr<UserGestureIndicator> gestureIndicator = createUserGestureIndicator();
-        if (frame->loader().history()->currentItemShouldBeReplaced())
+        if (frame->page()->history()->currentItemShouldBeReplaced(frame))
             setLockBackForwardList(true);
     }
 
@@ -240,7 +240,7 @@ public:
         m_haveToldClient = true;
 
         OwnPtr<UserGestureIndicator> gestureIndicator = createUserGestureIndicator();
-        if (frame->loader().history()->currentItemShouldBeReplaced())
+        if (frame->page()->history()->currentItemShouldBeReplaced(frame))
             setLockBackForwardList(true);
     }