Move TabStripModelDelegate off Browser into its own class.

chrome/browser/ui/find_bar/find_bar_host_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/message_loop.h"
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 921 matching lines @@
 
   // Find "Default".
   int ordinal = 0;
   TabContents* tab1 = chrome::GetActiveTabContents(browser());
   EXPECT_EQ(1, FindInPageWchar(tab1, L"text", kFwd, kIgnoreCase, &ordinal));
 
   // Create a second tab.
   // For some reason we can't use AddSelectedTabWithURL here on ChromeOS. It
   // could be some delicate assumption about the tab starting off unselected or
   // something relating to user gesture.
-  browser()->AddBlankTab(true);
+  chrome::AddBlankTab(browser(), true);
   ui_test_utils::NavigateToURL(browser(), url);
   TabContents* tab2 = chrome::GetActiveTabContents(browser());
   EXPECT_NE(tab1, tab2);
 
   // Find "given".
   FindInPageWchar(tab2, L"given", kFwd, kIgnoreCase, &ordinal);
 
   // Switch back to first tab.
   chrome::ActivateTabAt(browser(), 0, false);
   browser()->GetFindBarController()->EndFindSession(
@@ skipping 97 matching lines @@
   EnsureFindBoxOpen();
 
   EXPECT_EQ(ASCIIToUTF16("page"), GetFindBarText());
 
   // Close the Find box.
   browser()->GetFindBarController()->EndFindSession(
       FindBarController::kKeepSelectionOnPage,
       FindBarController::kKeepResultsInFindBox);
 
   // Now create a second tab and load the same page.
-  browser()->AddBlankTab(true);
+  chrome::AddBlankTab(browser(), true);
   ui_test_utils::NavigateToURL(browser(), url);
   TabContents* tab2 = chrome::GetActiveTabContents(browser());
   EXPECT_NE(tab1, tab2);
 
   // Search for the word "text".
   FindInPageWchar(tab2, L"text", kFwd, kIgnoreCase, &ordinal);
 
   // Go back to the first tab and make sure we have NOT switched the prepopulate
   // text to "text".
   chrome::ActivateTabAt(browser(), 0, false);
@@ skipping 175 matching lines @@
   ui_test_utils::RunAllPendingInMessageLoop();  // Needed on Linux.
   EXPECT_TRUE(GetFindBarWindowInfo(&position, NULL));
 
   ui_test_utils::NavigateToURLWithDisposition(
       browser(), url, NEW_FOREGROUND_TAB,
       ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
   chrome::CloseTab(browser());
   EXPECT_TRUE(GetFindBarWindowInfo(&position2, NULL));
   EXPECT_EQ(position, position2);
 }