mash: Convert system tray network item to wm common types

ash/ash.gyp

Index: ash/ash.gyp
diff --git a/ash/ash.gyp b/ash/ash.gyp
index 18ef78688d14bb42fbe42a57a3335088ad3ec7cc..2d73999fadb0c8afff48385bf5d7a0a86f0793ed 100644
--- a/ash/ash.gyp
+++ b/ash/ash.gyp
@@ -116,8 +116,23 @@
       'common/system/chromeos/devicetype_utils.h',
       'common/system/chromeos/enterprise/enterprise_domain_observer.h',
       'common/system/chromeos/media_security/media_capture_observer.h',
+      'common/system/chromeos/network/network_detailed_view.h',
       'common/system/chromeos/network/network_observer.h',
       'common/system/chromeos/network/network_portal_detector_observer.h',
+      'common/system/chromeos/network/network_state_list_detailed_view.cc',
+      'common/system/chromeos/network/network_state_list_detailed_view.h',
+      'common/system/chromeos/network/tray_network.cc',
+      'common/system/chromeos/network/tray_network.h',
+      'common/system/chromeos/network/tray_network_state_observer.cc',
+      'common/system/chromeos/network/tray_network_state_observer.h',
+      'common/system/chromeos/network/tray_sms.cc',
+      'common/system/chromeos/network/tray_sms.h',
+      'common/system/chromeos/network/tray_vpn.cc',
+      'common/system/chromeos/network/tray_vpn.h',
+      'common/system/chromeos/network/vpn_delegate.cc',
+      'common/system/chromeos/network/vpn_delegate.h',
+      'common/system/chromeos/network/vpn_list_view.cc',
+      'common/system/chromeos/network/vpn_list_view.h',
       'common/system/chromeos/power/battery_notification.cc',
       'common/system/chromeos/power/battery_notification.h',
       'common/system/chromeos/power/dual_role_notification.cc',
@@ -594,21 +609,6 @@
       'system/chromeos/media_security/multi_profile_media_tray_item.h',
       'system/chromeos/multi_user/user_switch_util.cc',
       'system/chromeos/multi_user/user_switch_util.h',
-      'system/chromeos/network/network_detailed_view.h',
-      'system/chromeos/network/network_state_list_detailed_view.cc',
-      'system/chromeos/network/network_state_list_detailed_view.h',
-      'system/chromeos/network/tray_network.cc',
-      'system/chromeos/network/tray_network.h',
-      'system/chromeos/network/tray_network_state_observer.cc',
-      'system/chromeos/network/tray_network_state_observer.h',
-      'system/chromeos/network/tray_sms.cc',
-      'system/chromeos/network/tray_sms.h',
-      'system/chromeos/network/tray_vpn.cc',
-      'system/chromeos/network/tray_vpn.h',
-      'system/chromeos/network/vpn_delegate.cc',
-      'system/chromeos/network/vpn_delegate.h',
-      'system/chromeos/network/vpn_list_view.cc',
-      'system/chromeos/network/vpn_list_view.h',
       'system/chromeos/power/power_event_observer.cc',
       'system/chromeos/power/power_event_observer.h',
       'system/chromeos/power/video_activity_notifier.cc',