ChromeOS: implement per-user time zone preferences.

chrome/browser/flag_descriptions.cc

Index: chrome/browser/flag_descriptions.cc
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 98b61d2977d37a2b2d5cb1d3f8e597c9f8745b7f..ddaf4fbe18e1cbd8357cf2de5d7b6229878f26f0 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -2305,6 +2305,11 @@ const char kDisableNativeCupsName[] = "Native CUPS";
 const char kDisableNativeCupsDescription[] =
     "Disable the use of the native CUPS printing backend.";
 
+const char kEnablePerUserTimezoneName[] = "Per-user time zone preferences.";
+const char kEnablePerUserTimezoneDescription[] =
+    "Chrome OS system timezone preference is stored and handled for each user "
+    "individually.";
+
 const char kEnableAndroidWallpapersAppName[] = "Android Wallpapers App";
 
 const char kEnableAndroidWallpapersAppDescription[] =