Add some remoting targets to GN build.

ui/wm/wm.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 10 matching lines @@
         '../events/platform/events_platform.gyp:events_platform',
         '../gfx/gfx.gyp:gfx_geometry',
         '../gfx/gfx.gyp:gfx',
         '../resources/ui_resources.gyp:ui_resources',
         '../base/ui_base.gyp:ui_base',
       ],
       'defines': [
         'WM_IMPLEMENTATION',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'core/accelerator_delegate.h',
         'core/accelerator_filter.cc',
         'core/accelerator_filter.h',
         'core/base_focus_rules.h',
         'core/base_focus_rules.cc',
         'core/base_focus_rules.h',
         'core/capture_controller.cc',
         'core/capture_controller.h',
         'core/compound_event_filter.cc',
         'core/compound_event_filter.h',
@@ skipping 103 matching lines @@
         'core/transient_window_manager_unittest.cc',
         'core/transient_window_stacking_client_unittest.cc',
         'core/user_activity_detector_unittest.cc',
         'core/visibility_controller_unittest.cc',
         'core/window_animations_unittest.cc',
         'core/window_util_unittest.cc',
       ],
     },
   ],
 }