ChromeOS: Add SystemTimezoneAutomaticDetection policy.

chrome/browser/chromeos/system/timezone_resolver_manager.cc

Index: chrome/browser/chromeos/system/timezone_resolver_manager.cc
diff --git a/chrome/browser/chromeos/system/timezone_resolver_manager.cc b/chrome/browser/chromeos/system/timezone_resolver_manager.cc
index d4e1715efbb2dc7b262ae191334cf38ba373867f..3ff7ff541fa2f355df157bfe463d4cbc36689a7b 100644
--- a/chrome/browser/chromeos/system/timezone_resolver_manager.cc
+++ b/chrome/browser/chromeos/system/timezone_resolver_manager.cc
@@ -7,6 +7,7 @@
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/policy/proto/chrome_device_policy.pb.h"
 #include "chrome/browser/chromeos/preferences.h"
 #include "chrome/browser/chromeos/system/timezone_util.h"
 #include "chrome/common/pref_names.h"
@@ -26,6 +27,39 @@ enum ServiceConfiguration {
   SHOULD_STOP = 2,   // This source requires service Stop.
 };
 
+// Starts or stops TimezoneResolver if required by
+// SystemTimezoneAutomaticDetectionPolicy.
+// Returns SHOULD_* if timezone resolver status is controlled by this policy.
+ServiceConfiguration GetServiceConfigurationFromAutomaticDetectionPolicy() {
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+          chromeos::switches::kEnableSystemTimezoneAutomaticDetectionPolicy)) {
+    return UNSPECIFIED;
+  }
+
+  PrefService* local_state = g_browser_process->local_state();
+  const bool is_managed = local_state->IsManagedPreference(
+      prefs::kSystemTimezoneAutomaticDetectionPolicy);
+  if (!is_managed)
+    return UNSPECIFIED;
+
+  int policy_value =
+      local_state->GetInteger(prefs::kSystemTimezoneAutomaticDetectionPolicy);
+
+  switch (policy_value) {
+    case enterprise_management::SystemTimezoneProto::USERS_DECIDE:
+      return UNSPECIFIED;
+    case enterprise_management::SystemTimezoneProto::DISABLED:
+      return SHOULD_STOP;
+    case enterprise_management::SystemTimezoneProto::IP_ONLY:
+      return SHOULD_START;
+    case enterprise_management::SystemTimezoneProto::SEND_WIFI_ACCESS_POINTS:
+      return SHOULD_START;
+  }
+  // Default for unknown policy value.
+  NOTREACHED() << "Unrecognized policy value: " << policy_value;
+  return SHOULD_STOP;
+}
+
 // Stops TimezoneResolver if SystemTimezonePolicy is applied.
 // Returns SHOULD_* if timezone resolver status is controlled by this policy.
 ServiceConfiguration GetServiceConfigurationFromSystemTimezonePolicy() {
@@ -44,6 +78,7 @@ ServiceConfiguration GetServiceConfigurationFromPolicy() {
   if (result != UNSPECIFIED)
     return result;
 
+  result = GetServiceConfigurationFromAutomaticDetectionPolicy();
   return result;
 }
 
@@ -78,6 +113,12 @@ ServiceConfiguration GetServiceConfigurationForSigninScreen() {
 
 TimeZoneResolverManager::TimeZoneResolverManager()
     : primary_user_prefs_(nullptr) {
+  local_state_pref_change_registrar_.Init(g_browser_process->local_state());
+  local_state_pref_change_registrar_.Add(
+      prefs::kSystemTimezoneAutomaticDetectionPolicy,
+      base::Bind(
+          &::chromeos::system::TimeZoneResolverManager::UpdateTimezoneResolver,
+          base::Unretained(this)));
 }
 
 TimeZoneResolverManager::~TimeZoneResolverManager() {}
@@ -87,7 +128,20 @@ void TimeZoneResolverManager::SetPrimaryUserPrefs(PrefService* pref_service) {
 }
 
 bool TimeZoneResolverManager::ShouldSendWiFiGeolocationData() {
-  return false;
+  PrefService* local_state = g_browser_process->local_state();
+  const bool is_managed = local_state->IsManagedPreference(
+      prefs::kSystemTimezoneAutomaticDetectionPolicy);
+  if (!is_managed)
+    return false;
+
+  int policy_value =
+      local_state->GetInteger(prefs::kSystemTimezoneAutomaticDetectionPolicy);
+
+  DCHECK(policy_value <= enterprise_management::SystemTimezoneProto::
+                             AutomaticTimezoneDetectionType_MAX);
+
+  return policy_value ==
+         enterprise_management::SystemTimezoneProto::SEND_WIFI_ACCESS_POINTS;
 }
 
 void TimeZoneResolverManager::UpdateTimezoneResolver() {
@@ -101,6 +155,10 @@ bool TimeZoneResolverManager::ShouldApplyResolvedTimezone() {
   return TimeZoneResolverShouldBeRunning();
 }
 
+bool TimeZoneResolverManager::TimeZoneResolverShouldBeRunningForTests() {
+  return TimeZoneResolverShouldBeRunning();
+}
+
 bool TimeZoneResolverManager::TimeZoneResolverShouldBeRunning() {
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           chromeos::switches::kDisableTimeZoneTrackingOption)) {