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

chrome/browser/ui/views/tabs/browser_tab_strip_controller.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/views/tabs/browser_tab_strip_controller.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/metrics/user_metrics.h"
@@ skipping 318 matching lines @@
                                              TabChangeType change_type) {
   if (change_type == TITLE_NOT_LOADING) {
     tabstrip_->TabTitleChangedNotLoading(model_index);
     // We'll receive another notification of the change asynchronously.
     return;
   }
 
   SetTabDataAt(contents, model_index);
 }
 
-void BrowserTabStripController::TabReplacedAt(TabContentsWrapper* old_contents,
+void BrowserTabStripController::TabReplacedAt(TabStripModel* tab_strip_model,
+                                              TabContentsWrapper* old_contents,
                                               TabContentsWrapper* new_contents,
                                               int model_index) {
   SetTabDataAt(new_contents, model_index);
 }
 
 void BrowserTabStripController::TabPinnedStateChanged(
     TabContentsWrapper* contents,
     int model_index) {
   // Currently none of the renderers render pinned state differently.
 }
@@ skipping 79 matching lines @@
   DCHECK(type.value == NotificationType::TAB_CLOSEABLE_STATE_CHANGED);
   // Note that this notification may be fired during a model mutation and
   // possibly before the tabstrip has processed the change.
   // Here, we just re-layout each existing tab to reflect the change in its
   // closeable state, and then schedule paint for entire tabstrip.
   for (int i = 0; i < tabstrip_->tab_count(); ++i) {
     tabstrip_->base_tab_at_tab_index(i)->Layout();
   }
   tabstrip_->SchedulePaint();
 }