Use standardized and extendable accelerometer update type.

ui/accelerometer/ui_accelerometer.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': [
     {
-      # GN version: //ui/events/ipc
-      'target_name': 'events_ipc',
+      # GN version: //ui/accelerometer
+      'target_name': 'ui_accelerometer',
       'type': '<(component)',
       'dependencies': [
-        '<(DEPTH)/base/base.gyp:base',
-        '<(DEPTH)/ipc/ipc.gyp:ipc',
+        '../gfx/gfx.gyp:gfx_geometry',
       ],
       'defines': [
-        'EVENTS_IMPLEMENTATION',
+        'UI_ACCELEROMETER_IMPLEMENTATION',
+      ],
+      'sources' : [
+        'accelerometer_types.cc',
+        'accelerometer_types.h',
+        'ui_accelerometer_export.h',
       ],
       'include_dirs': [
         '../..',
       ],
-      'sources': [
-        'latency_info_param_traits.cc',
-        'latency_info_param_traits.h',
-      ],
     },
   ],
 }