Refactoring to make adding ink drop animations easier

ui/events/events.gyp

 # Copyright 2013 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 128 matching lines @@
         'gestures/gesture_recognizer_impl_mac.cc',
         'gestures/gesture_types.h',
         'gestures/motion_event_aura.cc',
         'gestures/motion_event_aura.h',
         'linux/text_edit_command_auralinux.cc',
         'linux/text_edit_command_auralinux.h',
         'linux/text_edit_key_bindings_delegate_auralinux.cc',
         'linux/text_edit_key_bindings_delegate_auralinux.h',
         'null_event_targeter.cc',
         'null_event_targeter.h',
+        'scoped_target_handler.cc',
+        'scoped_target_handler.h',
         'ozone/events_ozone.cc',
         'win/events_win.cc',
         'win/system_event_state_lookup.cc',
         'win/system_event_state_lookup.h',
         'x/events_x.cc',
       ],
       'conditions': [
         ['use_x11==1', {
           'dependencies': [
             'devices/events_devices.gyp:events_devices',
@@ skipping 404 matching lines @@
               'dependencies': [
                 '../../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }