Remove TabContents from AddBlankTabAt, kill AddBlankTab.

chrome/browser/sessions/session_restore_browsertest.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 "base/command_line.h"
 #include "base/file_path.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/defaults.h"
@@ skipping 163 matching lines @@
 // (http://crbug.com/120927)
 IN_PROC_BROWSER_TEST_F(SessionRestoreTest, NoSessionRestoreNewWindowChromeOS) {
   GURL url(ui_test_utils::GetTestUrl(
       FilePath(FilePath::kCurrentDirectory),
       FilePath(FILE_PATH_LITERAL("title1.html"))));
 
   // Add a single tab.
   ui_test_utils::NavigateToURL(browser(), url);
 
   Browser* incognito_browser = CreateIncognitoBrowser();
-  chrome::AddBlankTab(incognito_browser, true);
+  chrome::AddBlankTabAt(incognito_browser, -1, true);
   incognito_browser->window()->Show();
 
   // Close the normal browser. After this we only have the incognito window
   // open.
   CloseBrowserSynchronously(browser());
 
   // Create a new window, which should open NTP.
   ui_test_utils::BrowserAddedObserver browser_added_observer;
   chrome::NewWindow(incognito_browser);
   Browser* new_browser = browser_added_observer.WaitForSingleNewBrowser();
@@ skipping 172 matching lines @@
 IN_PROC_BROWSER_TEST_F(SessionRestoreTest, IncognitotoNonIncognito) {
   GURL url(ui_test_utils::GetTestUrl(
       FilePath(FilePath::kCurrentDirectory),
       FilePath(FILE_PATH_LITERAL("title1.html"))));
 
   // Add a single tab.
   ui_test_utils::NavigateToURL(browser(), url);
 
   // Create a new incognito window.
   Browser* incognito_browser = CreateIncognitoBrowser();
-  chrome::AddBlankTab(incognito_browser, true);
+  chrome::AddBlankTabAt(incognito_browser, -1, true);
   incognito_browser->window()->Show();
 
   // Close the normal browser. After this we only have the incognito window
   // open.
   CloseBrowserSynchronously(browser());
 
   // Create a new window, which should trigger session restore.
   ui_test_utils::BrowserAddedObserver browser_added_observer;
   chrome::NewWindow(incognito_browser);
   Browser* new_browser = browser_added_observer.WaitForSingleNewBrowser();
@@ skipping 538 matching lines @@
   content::NavigationController* controller =
       &chrome::GetActiveWebContents(browser())->GetController();
   EXPECT_TRUE(
       controller->GetDefaultSessionStorageNamespace()->should_persist());
 
   // Quit and restore. Check that no extra tabs were created.
   Browser* new_browser = QuitBrowserAndRestore(browser(), 1);
   ASSERT_EQ(1u, BrowserList::size());
   EXPECT_EQ(1, new_browser->tab_strip_model()->count());
 }