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

chrome/browser/tabs/default_tab_handler.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 "base/metrics/nacl_histogram.h"
 #include "chrome/browser/tabs/default_tab_handler.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/browser.h"
 
 ////////////////////////////////////////////////////////////////////////////////
@@ skipping 153 matching lines @@
                                         index,
                                         user_gesture);
 }
 
 void DefaultTabHandler::TabMoved(TabContentsWrapper* contents,
                                  int from_index,
                                  int to_index) {
   delegate_->AsBrowser()->TabMoved(contents, from_index, to_index);
 }
 
-void DefaultTabHandler::TabReplacedAt(TabContentsWrapper* old_contents,
+void DefaultTabHandler::TabReplacedAt(TabStripModel* tab_strip_model,
+                                      TabContentsWrapper* old_contents,
                                       TabContentsWrapper* new_contents,
                                       int index) {
-  delegate_->AsBrowser()->TabReplacedAt(old_contents, new_contents, index);
+  delegate_->AsBrowser()->TabReplacedAt(tab_strip_model, old_contents,
+                                        new_contents, index);
 }
 
 void DefaultTabHandler::TabPinnedStateChanged(TabContentsWrapper* contents,
                                               int index) {
   delegate_->AsBrowser()->TabPinnedStateChanged(contents, index);
 }
 
 void DefaultTabHandler::TabStripEmpty() {
   delegate_->AsBrowser()->TabStripEmpty();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // TabHandler, public:
 
 // static
 TabHandler* TabHandler::CreateTabHandler(TabHandlerDelegate* delegate) {
   return new DefaultTabHandler(delegate);
 }