events: Make it a separate component from ui.

chrome/chrome_tests.gypi

 # 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' : {
     'chromedriver_unittest_sources': [
       'test/chromedriver/capabilities_unittest.cc',
       'test/chromedriver/chrome/chrome_finder_unittest.cc',
       'test/chromedriver/chrome/console_logger_unittest.cc',
       'test/chromedriver/chrome/device_manager_unittest.cc',
@@ skipping 657 matching lines @@
       'target_name': 'chromedriver_lib',
       'type': 'static_library',
       'hard_dependency': 1,
       'dependencies': [
         'automation_client_lib',
         '../base/base.gyp:base',
         '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '../crypto/crypto.gyp:crypto',
         '../net/net.gyp:http_server',
         '../net/net.gyp:net',
+        '../ui/events/events.gyp:events',
         '../ui/ui.gyp:ui',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         '<(SHARED_INTERMEDIATE_DIR)/chrome/test/chromedriver/version.cc',
         '<(SHARED_INTERMEDIATE_DIR)/chrome/test/chromedriver/version.h',
         '../third_party/webdriver/atoms.cc',
         '../third_party/webdriver/atoms.h',
@@ skipping 2463 matching lines @@
             'utility',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
           ],
         }]
     }],
   ],  # 'conditions'
 }