Rename LockBackForwardList to ReplaceCurrentItem.

Source/core/html/HTMLFrameOwnerElement.cpp

Index: Source/core/html/HTMLFrameOwnerElement.cpp
diff --git a/Source/core/html/HTMLFrameOwnerElement.cpp b/Source/core/html/HTMLFrameOwnerElement.cpp
index fd4e0c14543cc1cc8908b7192cd181ef65428e3a..1833cc61cb2a899e2bb4319a450b82f0a8fdb14b 100644
--- a/Source/core/html/HTMLFrameOwnerElement.cpp
+++ b/Source/core/html/HTMLFrameOwnerElement.cpp
@@ -242,11 +242,11 @@ Widget* HTMLFrameOwnerElement::ownedWidget() const
     return m_widget.get();
 }
 
-bool HTMLFrameOwnerElement::loadOrRedirectSubframe(const KURL& url, const AtomicString& frameName, bool lockBackForwardList)
+bool HTMLFrameOwnerElement::loadOrRedirectSubframe(const KURL& url, const AtomicString& frameName, bool replaceCurrentItem)
 {
     RefPtrWillBeRawPtr<LocalFrame> parentFrame = document().frame();
     if (contentFrame()) {
-        contentFrame()->navigate(document(), url, lockBackForwardList, UserGestureStatus::None);
+        contentFrame()->navigate(document(), url, replaceCurrentItem, UserGestureStatus::None);
         return true;
     }