Implementation for switching between recently used tabs using ctrl tilde or quoteleft.

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 3230 matching lines @@
         'browser/ui/tabs/pinned_tab_codec.cc',
         'browser/ui/tabs/pinned_tab_codec.h',
         'browser/ui/tabs/pinned_tab_service.cc',
         'browser/ui/tabs/pinned_tab_service.h',
         'browser/ui/tabs/pinned_tab_service_factory.cc',
         'browser/ui/tabs/pinned_tab_service_factory.h',
         'browser/ui/tabs/tab_finder.cc',
         'browser/ui/tabs/tab_finder.h',
         'browser/ui/tabs/tab_menu_model.cc',
         'browser/ui/tabs/tab_menu_model.h',
+        'browser/ui/tabs/tab_mru_list_manager.cc',
+        'browser/ui/tabs/tab_mru_list_manager.h',
         'browser/ui/tabs/tab_resources.cc',
         'browser/ui/tabs/tab_resources.h',
         'browser/ui/tabs/tab_strip_layout_type.h',
         'browser/ui/tabs/tab_strip_layout_type_prefs.cc',
         'browser/ui/tabs/tab_strip_layout_type_prefs.h',
         'browser/ui/tabs/tab_strip_model.cc',
         'browser/ui/tabs/tab_strip_model.h',
         'browser/ui/tabs/tab_strip_model_delegate.h',
         'browser/ui/tabs/tab_strip_model_observer.cc',
         'browser/ui/tabs/tab_strip_model_observer.h',
@@ skipping 1852 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' ]
     },
   ],
 }