Merge 96868 - Crash in VisiblePosition::canonicalPosition.

Source/WebCore/editing/VisiblePosition.cpp

Index: Source/WebCore/editing/VisiblePosition.cpp
===================================================================
--- Source/WebCore/editing/VisiblePosition.cpp	(revision 96946)
+++ Source/WebCore/editing/VisiblePosition.cpp	(working copy)
@@ -484,11 +484,11 @@
     if (position.isNull())
         return Position();
 
-    Node* node = position.containerNode();
-
     ASSERT(position.document());
     position.document()->updateLayoutIgnorePendingStylesheets();
 
+    Node* node = position.containerNode();
+
     Position candidate = position.upstream();
     if (candidate.isCandidate())
         return candidate;