Changes instant so that the newly created tab has a new id. Doing

chrome/browser/ui/browser.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <shellapi.h>
 #include <windows.h>
 #endif  // OS_WIN
@@ skipping 2654 matching lines @@
 }
 
 void Browser::TabMoved(TabContentsWrapper* contents,
                        int from_index,
                        int to_index) {
   DCHECK(from_index >= 0 && to_index >= 0);
   // Notify the history service.
   SyncHistoryWithTabs(std::min(from_index, to_index));
 }
 
-void Browser::TabReplacedAt(TabContentsWrapper* old_contents,
+void Browser::TabReplacedAt(TabStripModel* tab_strip_model,
+                            TabContentsWrapper* old_contents,
                             TabContentsWrapper* new_contents,
                             int index) {
   TabDetachedAtImpl(old_contents, index, DETACH_TYPE_REPLACE);
   TabInsertedAt(new_contents, index,
                 (index == tab_handler_->GetTabStripModel()->selected_index()));
 
   int entry_count = new_contents->controller().entry_count();
   if (entry_count > 0) {
     // Send out notification so that observers are updated appropriately.
     new_contents->controller().NotifyEntryChanged(
@@ skipping 1549 matching lines @@
     // The page transition below is only for the purpose of inserting the tab.
     browser->AddTab(view_source_contents, PageTransition::LINK);
   }
 
   if (profile_->HasSessionService()) {
     SessionService* session_service = profile_->GetSessionService();
     if (session_service)
       session_service->TabRestored(&view_source_contents->controller(), false);
   }
 }