Split cocoa_event_utils in two parts.

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 61 matching lines @@
         '<(DEPTH)/base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '<(DEPTH)/skia/skia.gyp:skia',
         '../gfx/gfx.gyp:gfx',
         '../gfx/gfx.gyp:gfx_geometry',
         'events_base',
       ],
       'defines': [
         'EVENTS_IMPLEMENTATION',
       ],
       'sources': [
+        'cocoa/cocoa_event_utils.h',
+        'cocoa/cocoa_event_utils.mm',
         'event.cc',
         'event.h',
         'event_constants.h',
         'event_dispatcher.cc',
         'event_dispatcher.h',
         'event_handler.cc',
         'event_handler.h',
         'event_processor.cc',
         'event_processor.h',
         'event_source.cc',
@@ skipping 109 matching lines @@
         '<(DEPTH)/base/base.gyp:test_support_base',
         '<(DEPTH)/testing/gtest.gyp:gtest',
         '../gfx/gfx.gyp:gfx',
         '../gfx/gfx.gyp:gfx_geometry',
         'dom4_keycode_converter',
         'events',
         'events_base',
         'events_test_support',
       ],
       'sources': [
+        'cocoa/cocoa_event_utils_unittest.mm',
         'event_dispatcher_unittest.cc',
         'event_processor_unittest.cc',
         'event_unittest.cc',
         'gestures/velocity_calculator_unittest.cc',
         'keycodes/dom4/keycode_converter_unittest.cc',
         'latency_info_unittest.cc',
         'ozone/evdev/key_event_converter_unittest.cc',
         'ozone/evdev/touch_event_converter_unittest.cc',
         'x/events_x_unittest.cc',
       ],
       'conditions': [
         ['OS=="linux" and linux_use_tcmalloc==1', {
           'dependencies': [
             '<(DEPTH)/base/allocator/allocator.gyp:allocator',
           ],
         }],
       ],
     },
   ],
 }