Move tray code from ui/chromeos/network/

ash/BUILD.gn

Index: ash/BUILD.gn
diff --git a/ash/BUILD.gn b/ash/BUILD.gn
index a907e6704cadd22de7bdd6635d3cf77628b14374..d78203f362174281797b8940f8f5e6e89d964baf 100644
--- a/ash/BUILD.gn
+++ b/ash/BUILD.gn
@@ -223,6 +223,20 @@ component("ash") {
     "common/system/chromeos/media_security/multi_profile_media_tray_item.cc",
     "common/system/chromeos/media_security/multi_profile_media_tray_item.h",
     "common/system/chromeos/network/network_detailed_view.h",
+    "common/system/chromeos/network/network_icon.cc",
+    "common/system/chromeos/network/network_icon.h",
+    "common/system/chromeos/network/network_icon_animation.cc",
+    "common/system/chromeos/network/network_icon_animation.h",
+    "common/system/chromeos/network/network_icon_animation_observer.h",
+    "common/system/chromeos/network/network_info.cc",
+    "common/system/chromeos/network/network_info.h",
+    "common/system/chromeos/network/network_list.cc",
+    "common/system/chromeos/network/network_list.h",
+    "common/system/chromeos/network/network_list_delegate.h",
+    "common/system/chromeos/network/network_list_md.cc",
+    "common/system/chromeos/network/network_list_md.h",
+    "common/system/chromeos/network/network_list_view_base.cc",
+    "common/system/chromeos/network/network_list_view_base.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",