Index: chrome/browser/ui/browser_commands.cc |
diff --git a/chrome/browser/ui/browser_commands.cc b/chrome/browser/ui/browser_commands.cc |
index 4000083732f8b3a95f64077404c6725a9fc57d2a..7613d586501cb96f8ed231cd6fd19c9bc00e2ad9 100644 |
--- a/chrome/browser/ui/browser_commands.cc |
+++ b/chrome/browser/ui/browser_commands.cc |
@@ -1009,7 +1009,9 @@ void ViewSource(Browser* browser, |
// Note that Clone does not copy the pending or transient entries, so the |
// active entry in view_source_contents will be the last committed entry. |
WebContents* view_source_contents = contents->Clone(); |
- view_source_contents->GetController().PruneAllButActive(); |
+ DCHECK(view_source_contents->GetController().CanPruneAllButVisible()); |
+ if (!view_source_contents->GetController().PruneAllButVisible()) |
+ return; |
NavigationEntry* active_entry = |
view_source_contents->GetController().GetActiveEntry(); |
if (!active_entry) |