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 3405 matching lines @@
         'browser/ui/tab_contents/tab_contents.cc',
         'browser/ui/tab_contents/tab_contents.h',
         'browser/ui/tab_contents/tab_contents_iterator.cc',
         'browser/ui/tab_contents/tab_contents_iterator.h',
         'browser/ui/tab_modal_confirm_dialog_delegate.cc',
         'browser/ui/tab_modal_confirm_dialog_delegate.h',
         'browser/ui/tabs/dock_info.cc',
         'browser/ui/tabs/dock_info.h',
         'browser/ui/tabs/hover_tab_selector.cc',
         'browser/ui/tabs/hover_tab_selector.h',
+        'browser/ui/tabs/mru_tab_controller.cc',
+        'browser/ui/tabs/mru_tab_controller.h',
         '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_menu_model.cc',
         'browser/ui/tabs/tab_menu_model.h',
         'browser/ui/tabs/tab_resources.cc',
         'browser/ui/tabs/tab_resources.h',
@@ skipping 2001 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' ]
     },
   ],
 }