Move TabStripModelDelegate off Browser into its own class.

chrome/browser/ui/browser_tabstrip.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_BROWSER_TABSTRIP_H_
 #define CHROME_BROWSER_UI_BROWSER_TABSTRIP_H_
 #pragma once
 
 #include "content/public/common/page_transition_types.h"
 #include "webkit/glue/window_open_disposition.h"
@@ skipping 18 matching lines @@
 int GetIndexOfTab(const Browser* browser, const content::WebContents* contents);
 
 TabContents* GetActiveTabContents(const Browser* browser);
 content::WebContents* GetActiveWebContents(const Browser* browser);
 
 TabContents* GetTabContentsAt(const Browser* browser, int index);
 content::WebContents* GetWebContentsAt(const Browser* browser, int index);
 
 void ActivateTabAt(Browser* browser, int index, bool user_gesture);
 
+TabContents* AddBlankTab(Browser* browser, bool foreground);
+TabContents* AddBlankTabAt(Browser* browser, int index, bool foreground);
+
 // Used by extensions.
 bool IsTabStripEditable(Browser* browser);
 
 // Adds a selected tab with the specified URL and transition, returns the
 // created TabContents.
 TabContents* AddSelectedTabWithURL(Browser* browser,
                                    const GURL& url,
                                    content::PageTransition transition);
 
 // Adds |tab_contents| to |browser|'s tabstrip.
@@ skipping 20 matching lines @@
 TabContents* TabContentsFactory(
     Profile* profile,
     content::SiteInstance* site_instance,
     int routing_id,
     const content::WebContents* base_web_contents,
     content::SessionStorageNamespace* session_storage_namespace);
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_BROWSER_TABSTRIP_H_