Cleanup dead code in base/ as found by Scythe.

base/base.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     '../build/win_precompile.gypi',
@@ skipping 212 matching lines @@
           'conditions': [
             ['OS=="win"', {
               'sources!': [
                 'debug/debug_on_start_win.cc',
               ],
             }],
           ],
         }],
       ],
       'sources': [
-        'third_party/xdg_user_dirs/xdg_user_dir_lookup.cc',
-        'third_party/xdg_user_dirs/xdg_user_dir_lookup.h',
         'async_socket_io_handler.h',
         'async_socket_io_handler_posix.cc',
         'async_socket_io_handler_win.cc',
         'auto_reset.h',
-        'event_recorder.h',
-        'event_recorder_stubs.cc',
-        'event_recorder_win.cc',
         'linux_util.cc',
         'linux_util.h',
         'message_loop/message_pump_android.cc',
         'message_loop/message_pump_android.h',
         'message_loop/message_pump_glib.cc',
         'message_loop/message_pump_glib.h',
         'message_loop/message_pump_io_ios.cc',
         'message_loop/message_pump_io_ios.h',
         'message_loop/message_pump_libevent.cc',
         'message_loop/message_pump_libevent.h',
         'message_loop/message_pump_mac.h',
         'message_loop/message_pump_mac.mm',
         'metrics/field_trial.cc',
         'metrics/field_trial.h',
         'posix/file_descriptor_shuffle.cc',
         'posix/file_descriptor_shuffle.h',
         'sync_socket.h',
+        'sync_socket_posix.cc',
         'sync_socket_win.cc',
-        'sync_socket_posix.cc',
+        'third_party/xdg_user_dirs/xdg_user_dir_lookup.cc',
+        'third_party/xdg_user_dirs/xdg_user_dir_lookup.h',
       ],
       'includes': [
         '../build/android/increase_size_for_speed.gypi',
       ],
     },
     {
       'target_name': 'base_i18n',
       'type': '<(component)',
       'variables': {
         'enable_wexit_time_destructors': 1,
@@ skipping 888 matching lines @@
               },
             },
           },
           # TODO(rvargas): Bug 78117. Remove this.
           'msvs_disabled_warnings': [
             4244,
             4996,
             4267,
           ],
           'sources': [
-            'third_party/xdg_user_dirs/xdg_user_dir_lookup.cc',
-            'third_party/xdg_user_dirs/xdg_user_dir_lookup.h',
             'async_socket_io_handler.h',
             'async_socket_io_handler_posix.cc',
             'async_socket_io_handler_win.cc',
             'auto_reset.h',
-            'event_recorder.h',
-            'event_recorder_stubs.cc',
-            'event_recorder_win.cc',
             'linux_util.cc',
             'linux_util.h',
             'md5.cc',
             'md5.h',
             'message_loop/message_pump_libevent.cc',
             'message_loop/message_pump_libevent.h',
             'metrics/field_trial.cc',
             'metrics/field_trial.h',
             'posix/file_descriptor_shuffle.cc',
             'posix/file_descriptor_shuffle.h',
             'sync_socket.h',
+            'sync_socket_posix.cc',
             'sync_socket_win.cc',
-            'sync_socket_posix.cc',
+            'third_party/xdg_user_dirs/xdg_user_dir_lookup.cc',
+            'third_party/xdg_user_dirs/xdg_user_dir_lookup.h',
           ],
         },
         {
           'target_name': 'base_i18n_nacl_win64',
           'type': '<(component)',
           # TODO(gregoryd): direct_dependent_settings should be shared with the
           # 32-bit target, but it doesn't work due to a bug in gyp
           'direct_dependent_settings': {
             'include_dirs': [
               '..',
@@ skipping 357 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }