Move implementation of BrowserList onto an inner, instantiatable class, BrowserListImpl.

chrome/browser/ui/browser_close_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/logging.h"
 #include "base/path_service.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/download/download_service.h"
 #include "chrome/browser/download/download_service_factory.h"
 #include "chrome/browser/download/download_test_observer.h"
 #include "chrome/browser/net/url_request_mock_util.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/download_item.h"
 #include "content/public/common/page_transition_types.h"
 #include "content/test/net/url_request_slow_download_job.h"
@@ skipping 540 matching lines @@
   }
 }
 
 IN_PROC_BROWSER_TEST_F(BrowserCloseTest, MAYBE_DownloadsCloseCheck_5) {
   ASSERT_TRUE(SetupForDownloadCloseCheck());
   for (size_t i = 5 * arraysize(download_close_check_cases) / 6;
        i < 6 * arraysize(download_close_check_cases) / 6; ++i) {
     ExecuteDownloadCloseCheckCase(i);
   }
 }