ash: Add missing dependency on events_ozone

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',
     # These files lists are shared with the GN build.
     'ash_sources': [
@@ skipping 916 matching lines @@
         }],
         ['use_x11==1', {
           'dependencies': [
             '../build/linux/system.gyp:x11',
             '../build/linux/system.gyp:xfixes',
             '../ui/gfx/x/gfx_x11.gyp:gfx_x11',
            ],
         }],
         ['use_ozone==1', {
           'dependencies': [
+            '../ui/events/ozone/events_ozone.gyp:events_ozone',
             '../ui/ozone/ozone.gyp:ozone',
           ],
         }],
         ['chromeos==1', {
           'dependencies': [
             '../chromeos/chromeos.gyp:chromeos',
             # Ash #includes power_supply_properties.pb.h directly.
             '../chromeos/chromeos.gyp:power_manager_proto',
             '../device/bluetooth/bluetooth.gyp:device_bluetooth',
             '../ui/chromeos/ui_chromeos.gyp:ui_chromeos_resources',
@@ skipping 339 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'ash_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }