try 3 of: Split out InputMethodMenuManager from InputMethodManager.

ash/ash.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,
     'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/chrome',
   },
   'includes': [
@@ skipping 154 matching lines @@
         'high_contrast/high_contrast_controller.h',
         'host/window_tree_host_factory.cc',
         'host/window_tree_host_factory.h',
         'host/window_tree_host_factory_win.cc',
         'ime/candidate_view.cc',
         'ime/candidate_view.h',
         'ime/candidate_window_view.cc',
         'ime/candidate_window_view.h',
         'ime/infolist_window.cc',
         'ime/infolist_window.h',
+        'ime/input_method_menu_item.cc',
+        'ime/input_method_menu_item.h',
+        'ime/input_method_menu_manager.cc',
+        'ime/input_method_menu_manager.h',
         'ime/mode_indicator_view.cc',
         'ime/mode_indicator_view.h',
         'keyboard_uma_event_filter.cc',
         'keyboard_uma_event_filter.h',
         'magnifier/magnification_controller.cc',
         'magnifier/magnification_controller.h',
         'magnifier/magnifier_constants.h',
         'magnifier/partial_magnification_controller.cc',
         'magnifier/partial_magnification_controller.h',
         'metrics/user_metrics_recorder.cc',
@@ skipping 664 matching lines @@
         'display/mouse_cursor_event_filter_unittest.cc',
         'display/projecting_observer_chromeos_unittest.cc',
         'display/resolution_notification_controller_unittest.cc',
         'display/root_window_transformers_unittest.cc',
         'display/screen_position_controller_unittest.cc',
         'drag_drop/drag_drop_controller_unittest.cc',
         'drag_drop/drag_drop_tracker_unittest.cc',
         'extended_desktop_unittest.cc',
         'focus_cycler_unittest.cc',
         'ime/candidate_window_view_unittest.cc',
+        'ime/input_method_menu_item_unittest.cc',
+        'ime/input_method_menu_manager_unittest.cc',
         'keyboard_overlay/keyboard_overlay_delegate_unittest.cc',
         'keyboard_overlay/keyboard_overlay_view_unittest.cc',
         'magnifier/magnification_controller_unittest.cc',
         'root_window_controller_unittest.cc',
         'screen_util_unittest.cc',
         'screensaver/screensaver_view_unittest.cc',
         'session_state_delegate_stub.cc',
         'session_state_delegate_stub.h',
         'shelf/scoped_observer_with_duplicated_sources_unittest.cc',
         'shelf/shelf_layout_manager_unittest.cc',
@@ skipping 223 matching lines @@
             },
           },
           'dependencies': [
             '../sandbox/sandbox.gyp:sandbox',
           ],
         }],
       ],
     },
   ],
 }