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

chrome/chrome_browser.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
@@ skipping 2397 matching lines @@
         'browser/ui/browser_command_controller.h',
         'browser/ui/browser_content_setting_bubble_model_delegate.cc',
         'browser/ui/browser_content_setting_bubble_model_delegate.h',
         'browser/ui/browser_dialogs.h',
         'browser/ui/browser_finder.cc',
         'browser/ui/browser_finder.h',
         'browser/ui/browser_instant_controller.cc',
         'browser/ui/browser_instant_controller.h',
         'browser/ui/browser_list.cc',
         'browser/ui/browser_list.h',
+        'browser/ui/browser_list_impl.cc',
+        'browser/ui/browser_list_impl.h',
         'browser/ui/browser_mac.cc',
         'browser/ui/browser_mac.h',
         'browser/ui/browser_navigator.cc',
         'browser/ui/browser_navigator.h',
         'browser/ui/browser_ui_prefs.cc',
         'browser/ui/browser_ui_prefs.h',
         'browser/ui/browser_tab_restore_service_delegate.cc',
         'browser/ui/browser_tab_restore_service_delegate.h',
         'browser/ui/browser_tab_strip_model_delegate.cc',
         'browser/ui/browser_tab_strip_model_delegate.h',
@@ skipping 988 matching lines @@
         'browser/ui/toolbar/back_forward_menu_model.h',
         'browser/ui/toolbar/bookmark_sub_menu_model.cc',
         'browser/ui/toolbar/bookmark_sub_menu_model.h',
         'browser/ui/toolbar/encoding_menu_controller.cc',
         'browser/ui/toolbar/encoding_menu_controller.h',
         'browser/ui/toolbar/toolbar_model.cc',
         'browser/ui/toolbar/toolbar_model.h',
         'browser/ui/toolbar/toolbar_model_delegate.h',
         'browser/ui/toolbar/wrench_menu_model.cc',
         'browser/ui/toolbar/wrench_menu_model.h',
+        'browser/ui/uma_browsing_activity_observer.cc',
+        'browser/ui/uma_browsing_activity_observer.h',
         'browser/ui/uninstall_browser_prompt.h',
         'browser/ui/unload_controller.cc',
         'browser/ui/unload_controller.h',
         'browser/ui/user_data_dir_dialog.h',
         'browser/ui/view_ids.h',
         'browser/ui/views/about_chrome_view.cc',
         'browser/ui/views/about_chrome_view.h',
         'browser/ui/views/about_ipc_dialog.cc',
         'browser/ui/views/about_ipc_dialog.h',
         'browser/ui/views/accelerator_table.cc',
@@ skipping 1940 matching lines @@
         'browser/metrics/proto/study.proto',
       ],
       'variables': {
         'proto_in_dir': 'browser/metrics/proto',
         'proto_out_dir': 'chrome/browser/metrics/proto',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }