Split //ui/events/devices into two targets.

ui/events/devices/x11/events_devices_x11.gyp

+# Copyright 2016 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': [
+    {
+      'target_name': 'events_devices_x11',
+      'type': '<(component)',
+      'dependencies': [
+        '../../../../base/base.gyp:base',
+        '../../../../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
+        '../../../../build/linux/system.gyp:x11',
+        '../../../../skia/skia.gyp:skia',
+        '../../../../ui/events/events.gyp:events_base',
+        '../../../../ui/events/devices/events_devices.gyp:events_devices',
+        '../../../../ui/gfx/gfx.gyp:gfx',
+        '../../../../ui/gfx/gfx.gyp:gfx_geometry',
+        '../../../../ui/gfx/x/gfx_x11.gyp:gfx_x11',
+      ],
+      'defines': [
+        'EVENTS_DEVICES_X11_IMPLEMENTATION',
+      ],
+      'sources': [
+        'device_data_manager_x11.cc',
+        'device_data_manager_x11.h',
+        'device_list_cache_x11.cc',
+        'device_list_cache_x11.h',
+        'events_devices_x11_export.h',
+        'touch_factory_x11.cc',
+        'touch_factory_x11.h',
+      ],
+    },
+  ],
+}