ChromeOS: Add SystemTimezoneAutomaticDetection policy.

chrome/browser/resources/options/browser_options.js

Index: chrome/browser/resources/options/browser_options.js
diff --git a/chrome/browser/resources/options/browser_options.js b/chrome/browser/resources/options/browser_options.js
index 514c0284bc9f9760c5467a0337d7996df92d22ff..b2ee96895b39ff1eb6b237766269ed6f7012191a 100644
--- a/chrome/browser/resources/options/browser_options.js
+++ b/chrome/browser/resources/options/browser_options.js
@@ -38,6 +38,18 @@ options.ExtensionData;
  */
 options.Profile;
 
+/**
+ * Device policy SystemTimezoneAutomaticDetection values.
+ * @enum {number}
+ * @const
+ */
+options.AutomaticTimezoneDetectionType = {
+  USERS_DECIDE: 0,
+  DISABLED: 1,
+  IP_ONLY: 2,
+  SEND_WIFI_ACCESS_POINTS: 3,
+};
+
 cr.define('options', function() {
   var OptionsPage = options.OptionsPage;
   var Page = cr.ui.pageManager.Page;
@@ -118,6 +130,18 @@ cr.define('options', function() {
     systemTimezoneIsManaged_: false,
 
     /**
+     * True if system timezone detection is managed by policy.
+     * @private {boolean}
+     */
+    systemTimezoneAutomaticDetectionIsManaged_: false,
+
+    /**
+     * This is the value of SystemTimezoneAutomaticDetection policy.
+     * @private {number}
+     */
+    systemTimezoneAutomaticDetectionValue_: 0,
+
+    /**
      * Cached bluetooth adapter state.
      * @private {?chrome.bluetooth.AdapterState}
      */
@@ -1681,17 +1705,37 @@ cr.define('options', function() {
      * @private
      */
     updateTimezoneSectionState_: function() {
+      var self = this;
+      $('resolve-timezone-by-geolocation')
+          .onclick = function(event) {
+        self.resolveTimezoneByGeolocation_ = event.currentTarget.checked;
+      };
       if (this.systemTimezoneIsManaged_) {
-        $('resolve-timezone-by-geolocation-selection').disabled = true;
-        $('resolve-timezone-by-geolocation').onclick = function(event) {};
+        $('resolve-timezone-by-geolocation').disabled = true;
+        $('resolve-timezone-by-geolocation').checked = false;
+      } else if (this.systemTimezoneAutomaticDetectionIsManaged_) {
+        if (this.systemTimezoneAutomaticDetectionValue_ ==
+            options.AutomaticTimezoneDetectionType.USERS_DECIDE) {
+          $('resolve-timezone-by-geolocation').disabled = false;
+          $('resolve-timezone-by-geolocation')
+              .checked = this.resolveTimezoneByGeolocation_;
+          $('timezone-value-select')
+              .disabled = this.resolveTimezoneByGeolocation_;
+        } else {
+          $('resolve-timezone-by-geolocation').disabled = true;
+          $('resolve-timezone-by-geolocation')
+              .checked =
+              (this.systemTimezoneAutomaticDetectionValue_ !=
+               options.AutomaticTimezoneDetectionType.DISABLED);
+          $('timezone-value-select').disabled = true;
+        }
       } else {
         this.enableElementIfPossible_(
-            getRequiredElement('resolve-timezone-by-geolocation-selection'));
-        $('resolve-timezone-by-geolocation').onclick = function(event) {
-          $('timezone-value-select').disabled = event.currentTarget.checked;
-        };
+            getRequiredElement('resolve-timezone-by-geolocation'));
         $('timezone-value-select').disabled =
             this.resolveTimezoneByGeolocation_;
+        $('resolve-timezone-by-geolocation')
+            .checked = this.resolveTimezoneByGeolocation_;
       }
     },
 
@@ -1707,6 +1751,20 @@ cr.define('options', function() {
     },
 
     /**
+     * This is called from chromium code when system timezone detection
+     * "managed" state is changed. Enables or disables dependent settings.
+     * @param {boolean} managed Is true when system timezone autodetection is
+     *     managed by enterprise policy. False otherwize.
+     * @param {options.AutomaticTimezoneDetectionType} value Current value of
+     *     SystemTimezoneAutomaticDetection device policy.
+     */
+    setSystemTimezoneAutomaticDetectionManaged_: function(managed, value) {
+      this.systemTimezoneAutomaticDetectionIsManaged_ = managed;
+      this.systemTimezoneAutomaticDetectionValue_ = value;
+      this.updateTimezoneSectionState_();
+    },
+
+    /**
      * This is Preferences event listener, which is called when
      * kResolveTimezoneByGeolocation preference is changed.
      * Enables or disables dependent settings.
@@ -2255,6 +2313,7 @@ cr.define('options', function() {
     'setProfilesInfo',
     'setSpokenFeedbackCheckboxState',
     'setSystemTimezoneManaged',
+    'setSystemTimezoneAutomaticDetectionManaged',
     'setThemesResetButtonEnabled',
     'setVirtualKeyboardCheckboxState',
     'setupPageZoomSelector',