Move TabStripModelDelegate off Browser into its own class.

chrome/browser/ui/browser_tabstrip.cc

 // 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.
 
 #include "chrome/browser/ui/browser_tabstrip.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/blocked_content/blocked_content_tab_helper.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_navigator.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/tab_contents/tab_contents.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_switches.h"
+#include "chrome/common/url_constants.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 
 namespace chrome {
 
 int GetIndexOfTab(const Browser* browser,
                   const content::WebContents* contents) {
   return browser->tab_strip_model()->GetIndexOfWebContents(contents);
 }
@@ skipping 13 matching lines @@
 
 content::WebContents* GetWebContentsAt(const Browser* browser, int index) {
   TabContents* tab = GetTabContentsAt(browser, index);
   return tab ? tab->web_contents() : NULL;
 }
 
 void ActivateTabAt(Browser* browser, int index, bool user_gesture) {
   browser->tab_strip_model()->ActivateTabAt(index, user_gesture);
 }
 
+TabContents* AddBlankTab(Browser* browser, bool foreground) {
+  return AddBlankTabAt(browser, -1, foreground);
+}
+
+TabContents* AddBlankTabAt(Browser* browser, int index, bool foreground) {
+  // Time new tab page creation time.  We keep track of the timing data in
+  // WebContents, but we want to include the time it takes to create the
+  // WebContents object too.
+  base::TimeTicks new_tab_start_time = base::TimeTicks::Now();
+  chrome::NavigateParams params(browser, GURL(chrome::kChromeUINewTabURL),
+                                content::PAGE_TRANSITION_TYPED);
+  params.disposition = foreground ? NEW_FOREGROUND_TAB : NEW_BACKGROUND_TAB;
+  params.tabstrip_index = index;
+  chrome::Navigate(&params);
+  params.target_contents->web_contents()->SetNewTabStartTime(
+      new_tab_start_time);
+  return params.target_contents;
+}
+
 bool IsTabStripEditable(Browser* browser) {
   return browser->window()->IsTabStripEditable();
 }
 
 TabContents* AddSelectedTabWithURL(Browser* browser,
                                    const GURL& url,
                                    content::PageTransition transition) {
   NavigateParams params(browser, url, transition);
   params.disposition = NEW_FOREGROUND_TAB;
   Navigate(&params);
@@ skipping 85 matching lines @@
     content::SessionStorageNamespace* session_storage_namespace) {
   return new TabContents(content::WebContents::Create(
       profile,
       site_instance,
       routing_id,
       base_web_contents,
       session_storage_namespace));
 }
 
 }  // namespace chrome