Clean up TCW, make it solely a hub for 1:1 observer/helper objects.

chrome/browser/content_settings/content_settings_browsertest.cc

 // Copyright (c) 2011 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/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/content_settings/cookie_settings.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
+#include "content/browser/tab_contents/tab_contents.h"
 #include "net/test/test_server.h"
 
 // Regression test for http://crbug.com/63649.
 IN_PROC_BROWSER_TEST_F(InProcessBrowserTest, RedirectLoopCookies) {
   ASSERT_TRUE(test_server()->Start());
 
   GURL test_url = test_server()->GetURL("files/redirect-loop.html");
 
   CookieSettings::GetForProfile(browser()->profile())->
       SetDefaultCookieSetting(CONTENT_SETTING_BLOCK);
@@ skipping 39 matching lines @@
   CookieSettings::GetForProfile(browser()->profile())->
       SetDefaultCookieSetting(CONTENT_SETTING_BLOCK);
 
   ui_test_utils::NavigateToURL(browser(), test_url);
 
   TabContentsWrapper* tab_contents = browser()->GetSelectedTabContentsWrapper();
 
   EXPECT_TRUE(tab_contents->content_settings()->IsContentBlocked(
       CONTENT_SETTINGS_TYPE_COOKIES));
 }