ChromeOS: implement per-user time zone preferences.

chrome/browser/chromeos/extensions/info_private_api.cc

Index: chrome/browser/chromeos/extensions/info_private_api.cc
diff --git a/chrome/browser/chromeos/extensions/info_private_api.cc b/chrome/browser/chromeos/extensions/info_private_api.cc
index 29bd74e2387dafa036aa085ba42a4ce3aa4386e8..6e50990e7077b2fd5fcd62243e362e899bcfef4a 100644
--- a/chrome/browser/chromeos/extensions/info_private_api.cc
+++ b/chrome/browser/chromeos/extensions/info_private_api.cc
@@ -326,11 +326,19 @@ std::unique_ptr<base::Value> ChromeosInfoPrivateGetFunction::GetValue(
   }
 
   if (property_name == kPropertyTimezone) {
-    // TODO(crbug.com/697817): Convert CrosSettings::Get to take a unique_ptr.
-    return base::WrapUnique<base::Value>(
-        chromeos::CrosSettings::Get()
-            ->GetPref(chromeos::kSystemTimezone)
-            ->DeepCopy());
+    if (chromeos::system::PerUserTimezoneEnabled()) {
+      return base::WrapUnique<base::Value>(
+          Profile::FromBrowserContext(context_)
+              ->GetPrefs()
+              ->GetUserPrefValue(prefs::kUserTimezone)
+              ->DeepCopy());
+    } else {

[stevenjb, 2017/07/10 19:10:52]

No else

[Alexander Alekseev, 2017/07/14 03:32:46]

Done.

+      // TODO(crbug.com/697817): Convert CrosSettings::Get to take a unique_ptr.
+      return base::WrapUnique<base::Value>(
+          chromeos::CrosSettings::Get()
+              ->GetPref(chromeos::kSystemTimezone)
+              ->DeepCopy());
+    }
   }
 
   if (property_name == kPropertySupportedTimezones) {
@@ -363,8 +371,13 @@ ExtensionFunction::ResponseAction ChromeosInfoPrivateSetFunction::Run() {
   if (param_name == kPropertyTimezone) {
     std::string param_value;
     EXTENSION_FUNCTION_VALIDATE(args_->GetString(1, &param_value));
-    chromeos::CrosSettings::Get()->Set(chromeos::kSystemTimezone,
-                                       base::Value(param_value));
+    if (chromeos::system::PerUserTimezoneEnabled()) {
+      Profile::FromBrowserContext(context_)->GetPrefs()->SetString(
+          prefs::kUserTimezone, param_value);
+    } else {
+      chromeos::CrosSettings::Get()->Set(chromeos::kSystemTimezone,
+                                         base::Value(param_value));
+    }
   } else {
     const char* pref_name = GetBoolPrefNameForApiProperty(param_name.c_str());
     if (pref_name) {