Rename attach and detach to createRenderTree/destroyRenderTree

Source/core/page/DOMWindow.cpp

Index: Source/core/page/DOMWindow.cpp
diff --git a/Source/core/page/DOMWindow.cpp b/Source/core/page/DOMWindow.cpp
index ed404f2b8e7cc40362b2f175e0c3f3e232831a0d..cb6052f884a6a7f0d93a5c018a139fc59b62835f 100644
--- a/Source/core/page/DOMWindow.cpp
+++ b/Source/core/page/DOMWindow.cpp
@@ -334,7 +334,7 @@ void DOMWindow::setDocument(PassRefPtr<Document> document)
             // always detaches the previous Document first. Only XSLTProcessor
             // depends on this detach() call, so it seems like there's some room
             // for cleanup.
-            m_document->detach();
+            m_document->destroyRenderTree();
         }
         m_document->setDOMWindow(0);
     }
@@ -346,7 +346,7 @@ void DOMWindow::setDocument(PassRefPtr<Document> document)
 
     m_document->setDOMWindow(this);
     if (!m_document->attached())
-        m_document->attach();
+        m_document->createRenderTree();
 
     if (!m_frame)
         return;