Merge 60984 - 2010-06-10 Tony Chang <tony@chromium.org>...

WebCore/dom/Element.cpp

Index: WebCore/dom/Element.cpp
===================================================================
--- WebCore/dom/Element.cpp	(revision 52676)
+++ WebCore/dom/Element.cpp	(working copy)
@@ -1308,8 +1308,12 @@
             return;
     }
 
-    if (Page* page = doc->page())
+    RefPtr<Node> protect;
+    if (Page* page = doc->page()) {
+        // Focus and change event handlers can cause us to lose our last ref.
+        protect = this;
         page->focusController()->setFocusedNode(this, doc->frame());
+    }
 
     // Setting the focused node above might have invalidated the layout due to scripts.
     doc->updateLayoutIgnorePendingStylesheets();