Move tab functions off Browser into browser_tabstrip and browser_tabrestore.

chrome/browser/ui/tabs/tab_strip_model.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_UI_TABS_TAB_STRIP_MODEL_H_
 #define CHROME_BROWSER_UI_TABS_TAB_STRIP_MODEL_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 276 matching lines @@
 
   // Returns the index of the specified TabContents given its raw
   // WebContents, or TabStripModel::kNoTab if the WebContents is not in this
   // TabStripModel.  Note: This is only needed in rare cases where the
   // TabContents is not already present (such as implementing
   // WebContentsDelegate methods, which don't know about TabContents).  Returns
   // NULL if |contents| is not associated with any TabContents in the
   // model.
   int GetIndexOfWebContents(const content::WebContents* contents) const;
 
-  // Returns the index of the specified NavigationController, or kNoTab if it is
-  // not in this TabStripModel.
-  int GetIndexOfController(
-      const content::NavigationController* controller) const;
-
   // Notify any observers that the TabContents at the specified index has
   // changed in some way. See TabChangeType for details of |change_type|.
   void UpdateTabContentsStateAt(
       int index,
       TabStripModelObserver::TabChangeType change_type);
 
   // Make sure there is an auto-generated New Tab tab in the TabStripModel.
   // If |force_create| is true, the New Tab will be created even if the
   // preference is set to false (used by startup).
   void EnsureNewTabVisible(bool force_create);
@@ skipping 391 matching lines @@
 
   // A scoped container for notification registries.
   content::NotificationRegistrar registrar_;
 
   TabStripSelectionModel selection_model_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(TabStripModel);
 };
 
 #endif  // CHROME_BROWSER_UI_TABS_TAB_STRIP_MODEL_H_