[TimeZoneMonitor] Decouple //content/browser/time_zone_monitor* to //device/.

content/browser/BUILD.gn

Index: content/browser/BUILD.gn
diff --git a/content/browser/BUILD.gn b/content/browser/BUILD.gn
index 4984e4d6fca1ca3e6058287b9a26630da87e25f4..c9992d5a1dd2121ae0004c676c4a129046b82e53 100644
--- a/content/browser/BUILD.gn
+++ b/content/browser/BUILD.gn
@@ -63,6 +63,7 @@ source_set("browser") {
     "//device/geolocation",
     "//device/geolocation/public/interfaces",
     "//device/power_save_blocker",
+    "//device/time_zone_monitor",
     "//device/vibration",
     "//gin",
     "//google_apis",
@@ -1292,14 +1293,6 @@ source_set("browser") {
     "streams/stream_write_observer.h",
     "theme_helper_mac.h",
     "theme_helper_mac.mm",
-    "time_zone_monitor.cc",
-    "time_zone_monitor.h",
-    "time_zone_monitor_android.cc",
-    "time_zone_monitor_android.h",
-    "time_zone_monitor_chromeos.cc",
-    "time_zone_monitor_linux.cc",
-    "time_zone_monitor_mac.mm",
-    "time_zone_monitor_win.cc",
     "tracing/background_tracing_config_impl.cc",
     "tracing/background_tracing_config_impl.h",
     "tracing/background_tracing_manager_impl.cc",