Aura on Android: Idle monitor stub implementation

ui/base/ui_base.gyp

 # Copyright 2014 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,
   },
   'targets': [
     {
@@ skipping 180 matching lines @@
         'dragdrop/os_exchange_data_provider_aura.h',
         'dragdrop/os_exchange_data_provider_aurax11.cc',
         'dragdrop/os_exchange_data_provider_aurax11.h',
         'dragdrop/os_exchange_data_provider_mac.h',
         'dragdrop/os_exchange_data_provider_mac.mm',
         'dragdrop/os_exchange_data_provider_win.cc',
         'dragdrop/os_exchange_data_provider_win.h',
         'hit_test.h',
         'idle/idle.cc',
         'idle/idle.h',
+        'idle/idle_android.cc',
         'idle/idle_chromeos.cc',
         'idle/idle_linux.cc',
         'idle/idle_mac.mm',
         'idle/idle_query_x11.cc',
         'idle/idle_query_x11.h',
         'idle/idle_win.cc',
         'idle/screensaver_window_finder_x11.cc',
         'idle/screensaver_window_finder_x11.h',
         'ios/cru_context_menu_controller.h',
         'ios/cru_context_menu_controller.mm',
@@ skipping 366 matching lines @@
             'nine_image_painter_factory.h',
           ],
         }],
         ['OS=="android"', {
           'sources!': [
             'cursor/image_cursors.cc',
             'cursor/image_cursors.h',
             'default_theme_provider.cc',
             'dragdrop/drag_utils.cc',
             'dragdrop/drag_utils.h',
-            'idle/idle.cc',
-            'idle/idle.h',
             'l10n/l10n_font_util.cc',
             'models/button_menu_item_model.cc',
             'models/dialog_model.cc',
             'theme_provider.cc',
             'touch/touch_device.cc',
             'touch/touch_editing_controller.cc',
             'ui_base_types.cc',
           ],
           'dependencies': [
             '../android/ui_android.gyp:ui_java',
             'ui_base_jni_headers',
           ],
           'link_settings': {
             'libraries': [
               '-ljnigraphics',
             ],
           },
         }],
         ['OS=="android" and use_aura==0', {
           'sources!': [
-            'cursor/cursor_android.cc'
+            'cursor/cursor_android.cc',
+            'idle/idle.cc',
+            'idle/idle.h',
+            'idle/idle_android.cc',
           ],
         }],
         ['OS=="android" and use_aura==1', {
           'sources!': [
             'clipboard/clipboard_aura.cc'
           ],
         }],
         ['OS=="android" or OS=="ios"', {
           'sources!': [
             'device_form_factor_desktop.cc'
@@ skipping 102 matching lines @@
            ],
            'variables': {
              'jni_gen_package': 'ui',
            },
            'includes': [ '../../build/jni_generator.gypi' ],
          },
        ],
     }],
   ],
 }