Migrate away from using 'var' in network directory.

Just simple refactoring.

Bug: 792774
Change-Id: I90e97fb8fd4e1ab5bb91f03b19ec8031eeb24375
Reviewed-on: https://chromium-review.googlesource.com/c/1326145Reviewed-by: Alexander Hendrich <hendrich@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Commit-Queue: Roman Aleksandrov <raleksandrov@google.com>
Cr-Commit-Position: refs/heads/master@{#606918}

ui/webui/resources/cr_components/chromeos/network/network_apnlist.js

@@ -91,10 +91,10 @@ Polymer({
     if (!this.networkProperties || !this.networkProperties.Cellular)
       return;
 
-    /** @type {!CrOnc.APNProperties|undefined} */ var activeApn;
-    var cellular = this.networkProperties.Cellular;
-    /** @type {!chrome.networkingPrivate.ManagedAPNProperties|undefined} */ var
-        apn = cellular.APN;
+    /** @type {!CrOnc.APNProperties|undefined} */ let activeApn;
+    const cellular = this.networkProperties.Cellular;
+    /** @type {!chrome.networkingPrivate.ManagedAPNProperties|undefined} */
+    const apn = cellular.APN;
     if (apn && apn.AccessPointName) {
       activeApn = /** @type {!CrOnc.APNProperties|undefined} */ (
           CrOnc.getActiveProperties(apn));
@@ -113,18 +113,18 @@ Polymer({
    */
   setApnSelectList_: function(activeApn) {
     // Copy the list of APNs from this.networkProperties.
-    var result = this.getApnList_().slice();
+    const result = this.getApnList_().slice();
 
     // Test whether |activeApn| is in the current APN list in networkProperties.
-    var activeApnInList = activeApn && result.some(function(a) {
+    const activeApnInList = activeApn && result.some(function(a) {
       return a.AccessPointName == activeApn.AccessPointName;
     });
 
     // If |activeApn| is specified and not in the list, use the active
     // properties for 'other'. Otherwise use any existing 'other' properties.
-    var otherApnProperties =
+    const otherApnProperties =
         (activeApn && !activeApnInList) ? activeApn : this.otherApn_;
-    var otherApn = this.createApnObject_(otherApnProperties);
+    const otherApn = this.createApnObject_(otherApnProperties);
 
     // Always use 'Other' for the name of custom APN entries (the name does
     // not get saved).
@@ -155,7 +155,7 @@ Polymer({
    * @private
    */
   createApnObject_: function(apnProperties) {
-    var newApn = {AccessPointName: ''};
+    const newApn = {AccessPointName: ''};
     if (apnProperties)
       Object.assign(newApn, apnProperties);
     return newApn;
@@ -169,8 +169,8 @@ Polymer({
   getApnList_: function() {
     if (!this.networkProperties || !this.networkProperties.Cellular)
       return [];
-    /** @type {!chrome.networkingPrivate.ManagedAPNList|undefined} */ var
-        apnlist = this.networkProperties.Cellular.APNList;
+    /** @type {!chrome.networkingPrivate.ManagedAPNList|undefined} */
+    const apnlist = this.networkProperties.Cellular.APNList;
     if (!apnlist)
       return [];
     return /** @type {!Array<!CrOnc.APNProperties>} */ (
@@ -183,8 +183,8 @@ Polymer({
    * @private
    */
   onSelectApnChange_: function(event) {
-    var target = /** @type {!HTMLSelectElement} */ (event.target);
-    var accessPointName = target.value;
+    const target = /** @type {!HTMLSelectElement} */ (event.target);
+    const accessPointName = target.value;
     // When selecting 'Other', don't set a change event unless a valid
     // non-default value has been set for Other.
     if (this.isOtherSelected_(accessPointName) &&
@@ -204,7 +204,7 @@ Polymer({
   onOtherApnChange_: function(event) {
     // TODO(benchan/stevenjb): Move this to shill or
     // onc_translator_onc_to_shill.cc.
-    var value = (event.detail.field == 'AccessPointName') ?
+    const value = (event.detail.field == 'AccessPointName') ?
         event.detail.value.toUpperCase() :
         event.detail.value;
     this.set('otherApn_.' + event.detail.field, value);
@@ -226,8 +226,8 @@ Polymer({
    * @private
    */
   sendApnChange_: function(accessPointName) {
-    var apnList = this.getApnList_();
-    var apn = this.findApnInList(apnList, accessPointName);
+    const apnList = this.getApnList_();
+    let apn = this.findApnInList(apnList, accessPointName);
     if (apn == undefined) {
       apn = this.createApnObject_();
       if (this.otherApn_) {
@@ -247,8 +247,8 @@ Polymer({
   isOtherSelected_: function(accessPointName) {
     if (!this.networkProperties || !this.networkProperties.Cellular)
       return false;
-    var apnList = this.getApnList_();
-    var apn = this.findApnInList(apnList, accessPointName);
+    const apnList = this.getApnList_();
+    const apn = this.findApnInList(apnList, accessPointName);
     return apn == undefined;
   },
 

ui/webui/resources/cr_components/chromeos/network/network_choose_mobile.js

@@ -66,13 +66,13 @@ Polymer({
   networkPropertiesChanged_: function() {
     if (!this.networkProperties || !this.networkProperties.Cellular)
       return;
-    var cellular = this.networkProperties.Cellular;
+    const cellular = this.networkProperties.Cellular;
     this.mobileNetworkList_ = cellular.FoundNetworks ||
         [{NetworkId: 'none', LongName: this.i18n('networkCellularNoNetworks')}];
 
     // Set selectedMobileNetworkId_ after the dom-repeat has been stamped.
     this.async(() => {
-      var selected = this.mobileNetworkList_.find(function(mobileNetwork) {
+      let selected = this.mobileNetworkList_.find(function(mobileNetwork) {
         return mobileNetwork.Status == 'current';
       });
       if (!selected)
@@ -110,7 +110,7 @@ Polymer({
         properties.ConnectionState != CrOnc.ConnectionState.NOT_CONNECTED) {
       return false;
     }
-    var found = this.get('Cellular.FoundNetworks', properties);
+    const found = this.get('Cellular.FoundNetworks', properties);
     return !!found && found.length > 0;
   },
 
@@ -122,7 +122,7 @@ Polymer({
   getSecondaryText_: function(properties) {
     if (!properties || !properties.Cellular)
       return '';
-    var cellular = properties.Cellular;
+    const cellular = properties.Cellular;
     if (cellular.Scanning)
       return this.i18n('networkCellularScanning');
     else if (this.scanRequested_)
@@ -157,7 +157,7 @@ Polymer({
    * @private
    */
   onChange_: function(event) {
-    var target = /** @type {!HTMLSelectElement} */ (event.target);
+    const target = /** @type {!HTMLSelectElement} */ (event.target);
     if (!target.value || target.value == 'none')
       return;
     this.networkingPrivate.selectCellularMobileNetwork(

ui/webui/resources/cr_components/chromeos/network/network_config_element_behavior.js

@@ -7,7 +7,7 @@
  */
 
 /** @polymerBehavior */
-var NetworkConfigElementBehavior = {
+const NetworkConfigElementBehavior = {
   properties: {
     disabled: {
       type: Boolean,

ui/webui/resources/cr_components/chromeos/network/network_config_select.js

@@ -52,7 +52,7 @@ Polymer({
   updateSelected_: function() {
     // Wait for the dom-repeat to populate the <option> entries.
     this.async(function() {
-      var select = this.$$('select');
+      const select = this.$$('select');
       if (select.value != this.value)
         select.value = this.value;
     });
@@ -69,8 +69,8 @@ Polymer({
       return this.getCertificateName_(
           /** @type {chrome.networkingPrivate.Certificate}*/ (item));
     }
-    var key = /** @type {string} */ (item);
-    var oncKey = 'Onc' + prefix.replace(/\./g, '-') + '_' + key;
+    const key = /** @type {string} */ (item);
+    const oncKey = 'Onc' + prefix.replace(/\./g, '-') + '_' + key;
     if (this.i18nExists(oncKey))
       return this.i18n(oncKey);
     assertNotReached('ONC Key not found: ' + oncKey);
@@ -95,7 +95,7 @@ Polymer({
    */
   getItemEnabled_: function(item) {
     if (this.certList) {
-      var cert = /** @type {chrome.networkingPrivate.Certificate}*/ (item);
+      const cert = /** @type {chrome.networkingPrivate.Certificate}*/ (item);
       return !!cert.hash;
     }
     return true;

ui/webui/resources/cr_components/chromeos/network/network_ip_config.js

@@ -81,21 +81,21 @@ Polymer({
     if (!this.networkProperties)
       return;
 
-    var properties = this.networkProperties;
+    const properties = this.networkProperties;
     if (newValue.GUID != (oldValue && oldValue.GUID))
       this.savedStaticIp_ = undefined;
 
     // Update the 'automatic' property.
     if (properties.IPAddressConfigType) {
-      var ipConfigType = CrOnc.getActiveValue(properties.IPAddressConfigType);
+      const ipConfigType = CrOnc.getActiveValue(properties.IPAddressConfigType);
       this.automatic_ = (ipConfigType != CrOnc.IPConfigType.STATIC);
     }
 
     if (properties.IPConfigs || properties.StaticIPConfig) {
       // Update the 'ipConfig' property.
-      var ipv4 = this.getIPConfigUIProperties_(
+      const ipv4 = this.getIPConfigUIProperties_(
           CrOnc.getIPConfigForType(properties, CrOnc.IPType.IPV4));
-      var ipv6 = this.getIPConfigUIProperties_(
+      let ipv6 = this.getIPConfigUIProperties_(
           CrOnc.getIPConfigForType(properties, CrOnc.IPType.IPV6));
       if (properties.ConnectionState == CrOnc.ConnectionState.CONNECTED &&
           ipv4 && ipv4.IPAddress) {
@@ -111,7 +111,7 @@ Polymer({
   /** @private */
   onAutomaticChange_: function() {
     if (!this.automatic_) {
-      var defaultIpv4 = {
+      const defaultIpv4 = {
         Gateway: '192.168.1.1',
         IPAddress: '192.168.1.1',
         RoutingPrefix: '255.255.255.0',
@@ -147,9 +147,9 @@ Polymer({
   getIPConfigUIProperties_: function(ipconfig) {
     if (!ipconfig)
       return undefined;
-    var result = {};
-    for (var key in ipconfig) {
-      var value = ipconfig[key];
+    const result = {};
+    for (const key in ipconfig) {
+      const value = ipconfig[key];
       if (key == 'RoutingPrefix')
         result.RoutingPrefix = CrOnc.getRoutingPrefixAsNetmask(value);
       else
@@ -165,9 +165,9 @@ Polymer({
    * @private
    */
   getIPConfigProperties_: function(ipconfig) {
-    var result = {};
-    for (var key in ipconfig) {
-      var value = ipconfig[key];
+    const result = {};
+    for (const key in ipconfig) {
+      const value = ipconfig[key];
       if (key == 'RoutingPrefix')
         result.RoutingPrefix = CrOnc.getRoutingPrefixAsLength(value);
       else
@@ -183,7 +183,7 @@ Polymer({
   hasIpConfigFields_: function() {
     if (!this.ipConfigFields_)
       return false;
-    for (var i = 0; i < this.ipConfigFields_.length; ++i) {
+    for (let i = 0; i < this.ipConfigFields_.length; ++i) {
       if (this.get(this.ipConfigFields_[i], this.ipConfig_) != undefined)
         return true;
     }
@@ -213,8 +213,8 @@ Polymer({
   onIPChange_: function(event) {
     if (!this.ipConfig_)
       return;
-    var field = event.detail.field;
-    var value = event.detail.value;
+    const field = event.detail.field;
+    const value = event.detail.value;
     // Note: |field| includes the 'ipv4.' prefix.
     this.set('ipConfig_.' + field, value);
     this.sendStaticIpConfig_();

ui/webui/resources/cr_components/chromeos/network/network_nameservers.js

@@ -81,16 +81,16 @@ Polymer({
       this.savedNameservers_ = [];
 
     // Update the 'nameservers' property.
-    var nameservers = [];
-    var ipv4 =
+    let nameservers = [];
+    const ipv4 =
         CrOnc.getIPConfigForType(this.networkProperties, CrOnc.IPType.IPV4);
     if (ipv4 && ipv4.NameServers)
       nameservers = ipv4.NameServers;
 
     // Update the 'nameserversType' property.
-    var configType =
+    const configType =
         CrOnc.getActiveValue(this.networkProperties.NameServersConfigType);
-    var type;
+    let type;
     if (configType == CrOnc.IPConfigType.STATIC) {
       if (nameservers.join(',') == this.GOOGLE_NAMESERVERS.join(',')) {
         type = 'google';
@@ -114,7 +114,7 @@ Polymer({
   setNameservers_: function(nameserversType, nameservers, sendNameservers) {
     if (nameserversType == 'custom') {
       // Add empty entries for unset custom nameservers.
-      for (var i = nameservers.length; i < this.MAX_NAMESERVERS; ++i)
+      for (let i = nameservers.length; i < this.MAX_NAMESERVERS; ++i)
         nameservers[i] = '';
       this.savedNameservers_ = nameservers.slice();
     }
@@ -165,7 +165,7 @@ Polymer({
    * @private
    */
   onTypeChange_: function() {
-    var type = this.$$('#nameserverType').selected;
+    const type = this.$$('#nameserverType').selected;
     this.nameserversType_ = type;
     if (type == 'custom') {
       // Restore the saved nameservers.
@@ -193,12 +193,12 @@ Polymer({
    * @private
    */
   sendNameServers_: function() {
-    var type = this.nameserversType_;
+    const type = this.nameserversType_;
 
     if (type == 'custom') {
-      var nameservers = new Array(this.MAX_NAMESERVERS);
-      for (var i = 0; i < this.MAX_NAMESERVERS; ++i) {
-        var nameserverInput = this.$$('#nameserver' + i);
+      const nameservers = new Array(this.MAX_NAMESERVERS);
+      for (let i = 0; i < this.MAX_NAMESERVERS; ++i) {
+        const nameserverInput = this.$$('#nameserver' + i);
         nameservers[i] = nameserverInput ? nameserverInput.value : '';
       }
       this.nameservers_ = nameservers;

ui/webui/resources/cr_components/chromeos/network/network_property_list.js

@@ -75,14 +75,14 @@ Polymer({
   onValueChange_: function(event) {
     if (!this.propertyDict)
       return;
-    var key = event.target.id;
-    var curValue = this.get(key, this.propertyDict);
+    const key = event.target.id;
+    let curValue = this.get(key, this.propertyDict);
     if (typeof curValue == 'object' && !Array.isArray(curValue)) {
       // Extract the property from an ONC managed dictionary.
       curValue = CrOnc.getActiveValue(
           /** @type {!CrOnc.ManagedProperty} */ (curValue));
     }
-    var newValue = this.getValueFromEditField_(key, event.target.value);
+    const newValue = this.getValueFromEditField_(key, event.target.value);
     if (newValue == curValue)
       return;
     this.fire('property-change', {field: key, value: newValue});
@@ -95,15 +95,15 @@ Polymer({
    * @private
    */
   getPropertyLabel_: function(key, prefix) {
-    var oncKey = 'Onc' + prefix + key;
+    let oncKey = 'Onc' + prefix + key;
     oncKey = oncKey.replace(/\./g, '-');
     if (this.i18nExists(oncKey))
       return this.i18n(oncKey);
     // We do not provide translations for every possible network property key.
     // For keys specific to a type, strip the type prefix.
-    var result = prefix + key;
-    for (var entry in chrome.networkingPrivate.NetworkType) {
-      var type = chrome.networkingPrivate.NetworkType[entry];
+    let result = prefix + key;
+    for (const entry in chrome.networkingPrivate.NetworkType) {
+      const type = chrome.networkingPrivate.NetworkType[entry];
       if (result.startsWith(type + '.')) {
         result = result.substr(type.length + 1);
         break;
@@ -123,7 +123,7 @@ Polymer({
     return key => {
       if (editFieldTypes.hasOwnProperty(key))
         return true;
-      var value = this.getPropertyValue_(key, prefix, propertyDict);
+      const value = this.getPropertyValue_(key, prefix, propertyDict);
       return value !== undefined && value !== '';
     };
   },
@@ -135,12 +135,12 @@ Polymer({
    * @private
    */
   isPropertyEditable_: function(key, propertyDict) {
-    var property = /** @type {!CrOnc.ManagedProperty|undefined} */ (
+    const property = /** @type {!CrOnc.ManagedProperty|undefined} */ (
         this.get(key, propertyDict));
     if (property === undefined) {
       // Unspecified properties in policy configurations are not user
       // modifiable. https://crbug.com/819837.
-      var source = propertyDict.Source;
+      const source = propertyDict.Source;
       return source != 'UserPolicy' && source != 'DevicePolicy';
     }
     return !this.isNetworkPolicyEnforced(property);
@@ -153,7 +153,7 @@ Polymer({
    * @private
    */
   isEditType_: function(key, editFieldTypes) {
-    var editType = editFieldTypes[key];
+    const editType = editFieldTypes[key];
     return editType == 'String' || editType == 'StringArray' ||
         editType == 'Password';
   },
@@ -198,7 +198,7 @@ Polymer({
    * @private
    */
   getProperty_: function(key, propertyDict) {
-    var property = this.get(key, propertyDict);
+    const property = this.get(key, propertyDict);
     if (property === undefined && propertyDict.Source) {
       // Provide an empty property object with the network policy source.
       // See https://crbug.com/819837 for more info.
@@ -215,7 +215,7 @@ Polymer({
    * @private
    */
   getPropertyValue_: function(key, prefix, propertyDict) {
-    var value = this.get(key, propertyDict);
+    let value = this.get(key, propertyDict);
     if (value === undefined)
       return '';
     if (typeof value == 'object' && !Array.isArray(value)) {
@@ -226,15 +226,15 @@ Polymer({
     if (Array.isArray(value))
       return value.join(', ');
 
-    var customValue = this.getCustomPropertyValue_(key, value);
+    const customValue = this.getCustomPropertyValue_(key, value);
     if (customValue)
       return customValue;
     if (typeof value == 'number' || typeof value == 'boolean')
       return value.toString();
 
     assert(typeof value == 'string');
-    var valueStr = /** @type {string} */ (value);
-    var oncKey = 'Onc' + prefix + key;
+    const valueStr = /** @type {string} */ (value);
+    let oncKey = 'Onc' + prefix + key;
     oncKey = oncKey.replace(/\./g, '-');
     oncKey += '_' + valueStr;
     if (this.i18nExists(oncKey))
@@ -250,7 +250,7 @@ Polymer({
    * @private
    */
   getValueFromEditField_(key, fieldValue) {
-    var editType = this.editFieldTypes[key];
+    const editType = this.editFieldTypes[key];
     if (editType == 'StringArray')
       return fieldValue.toString().split(/, */);
     return fieldValue;

ui/webui/resources/cr_components/chromeos/network/network_proxy.js

@@ -150,12 +150,12 @@ Polymer({
       return;
 
     /** @type {!CrOnc.ProxySettings} */
-    var proxy = this.createDefaultProxySettings_();
+    const proxy = this.createDefaultProxySettings_();
 
     // For shared networks with unmanaged proxy settings, ignore any saved
     // proxy settings (use the default values).
     if (this.isShared_()) {
-      var property = this.getProxySettingsTypeProperty_();
+      const property = this.getProxySettingsTypeProperty_();
       if (!this.isControlled(property) && !this.useSharedProxies) {
         this.setProxyAsync_(proxy);
         return;  // Proxy settings will be ignored.
@@ -163,7 +163,7 @@ Polymer({
     }
 
     /** @type {!chrome.networkingPrivate.ManagedProxySettings|undefined} */
-    var proxySettings = this.networkProperties.ProxySettings;
+    const proxySettings = this.networkProperties.ProxySettings;
     if (proxySettings) {
       proxy.Type = /** @type {!CrOnc.ProxySettingsType} */ (
           CrOnc.getActiveValue(proxySettings.Type));
@@ -185,7 +185,7 @@ Polymer({
             /** @type {!CrOnc.ProxyLocation|undefined} */ (
                 CrOnc.getActiveProperties(proxySettings.Manual.SOCKS)) ||
             {Host: '', Port: 80};
-        var jsonHttp = proxy.Manual.HTTPProxy;
+        const jsonHttp = proxy.Manual.HTTPProxy;
         this.useSameProxy_ =
             (CrOnc.proxyMatches(jsonHttp, proxy.Manual.SecureHTTPProxy) &&
              CrOnc.proxyMatches(jsonHttp, proxy.Manual.FTPProxy) &&
@@ -206,7 +206,7 @@ Polymer({
     proxy.Manual = proxy.Manual || this.savedManual_;
 
     // Set the Web Proxy Auto Discovery URL.
-    var ipv4 =
+    const ipv4 =
         CrOnc.getIPConfigForType(this.networkProperties, CrOnc.IPType.IPV4);
     this.WPAD_ = (ipv4 && ipv4.WebProxyAutoDiscoveryUrl) ||
         this.i18n('networkProxyWpadNone');
@@ -254,11 +254,11 @@ Polymer({
    * @private
    */
   sendProxyChange_: function() {
-    var proxy =
+    const proxy =
         /** @type {!CrOnc.ProxySettings} */ (Object.assign({}, this.proxy_));
     if (proxy.Type == CrOnc.ProxySettingsType.MANUAL) {
-      var manual = proxy.Manual;
-      var defaultProxy = manual.HTTPProxy || {Host: '', Port: 80};
+      const manual = proxy.Manual;
+      const defaultProxy = manual.HTTPProxy || {Host: '', Port: 80};
       if (this.useSameProxy_) {
         proxy.Manual.SecureHTTPProxy = /** @type {!CrOnc.ProxyLocation} */ (
             Object.assign({}, defaultProxy));
@@ -293,12 +293,12 @@ Polymer({
    * @private
    */
   onTypeChange_: function(event) {
-    var target = /** @type {!HTMLSelectElement} */ (event.target);
-    var type = /** @type {chrome.networkingPrivate.ProxySettingsType} */ (
+    const target = /** @type {!HTMLSelectElement} */ (event.target);
+    const type = /** @type {chrome.networkingPrivate.ProxySettingsType} */ (
         target.value);
     this.set('proxy_.Type', type);
-    var proxyTypeChangeIsReady;
-    var elementToFocus;
+    let proxyTypeChangeIsReady;
+    let elementToFocus;
     switch (type) {
       case CrOnc.ProxySettingsType.DIRECT:
       case CrOnc.ProxySettingsType.WPAD:
@@ -346,7 +346,7 @@ Polymer({
 
   /** @private */
   onAddProxyExclusionTap_: function() {
-    var value = this.$.proxyExclusion.value;
+    const value = this.$.proxyExclusion.value;
     if (!value)
       return;
     this.push('proxy_.ExcludeDomains', value);
@@ -414,7 +414,7 @@ Polymer({
       return false;
     if (!this.networkProperties.hasOwnProperty('ProxySettings'))
       return true;  // No proxy settings defined, so not enforced.
-    var property = /** @type {!CrOnc.ManagedProperty|undefined} */ (
+    const property = /** @type {!CrOnc.ManagedProperty|undefined} */ (
         this.get('ProxySettings.' + propertyName, this.networkProperties));
     if (!property)
       return true;
@@ -447,8 +447,8 @@ Polymer({
   isSaveManualProxyEnabled_: function() {
     if (!this.proxyIsUserModified_)
       return false;
-    var manual = this.proxy_.Manual;
-    var httpHost = this.get('HTTPProxy.Host', manual);
+    const manual = this.proxy_.Manual;
+    const httpHost = this.get('HTTPProxy.Host', manual);
     if (this.useSameProxy_)
       return !!httpHost;
     return !!httpHost || !!this.get('SecureHTTPProxy.Host', manual) ||

ui/webui/resources/cr_components/chromeos/network/network_proxy_exclusions.js

@@ -38,7 +38,7 @@ Polymer({
    * @private
    */
   onRemoveTap_: function(event) {
-    var index = event.model.index;
+    const index = event.model.index;
     this.splice('exclusions', index, 1);
     this.fire('proxy-change');
   }

ui/webui/resources/cr_components/chromeos/network/network_proxy_input.js

@@ -52,7 +52,7 @@ Polymer({
    * @private
    */
   onValueChange_: function() {
-    var port = parseInt(this.value.Port, 10);
+    let port = parseInt(this.value.Port, 10);
     if (isNaN(port))
       port = 80;
     this.value.Port = port;

ui/webui/resources/cr_components/chromeos/network/network_siminfo.js

@@ -7,7 +7,7 @@
  */
 
 /** @enum {string} */
-var ErrorType = {
+const ErrorType = {
   NONE: 'none',
   INCORRECT_PIN: 'incorrect-pin',
   INCORRECT_PUK: 'incorrect-puk',
@@ -18,9 +18,9 @@ var ErrorType = {
 
 (function() {
 
-var PIN_MIN_LENGTH = 4;
-var PUK_MIN_LENGTH = 8;
-var TOGGLE_DEBOUNCE_MS = 500;
+const PIN_MIN_LENGTH = 4;
+const PUK_MIN_LENGTH = 8;
+const TOGGLE_DEBOUNCE_MS = 500;
 
 Polymer({
   is: 'network-siminfo',
@@ -161,10 +161,10 @@ Polymer({
   networkPropertiesChanged_: function() {
     if (!this.networkProperties || !this.networkProperties.Cellular)
       return;
-    var simLockStatus = this.networkProperties.Cellular.SIMLockStatus;
+    const simLockStatus = this.networkProperties.Cellular.SIMLockStatus;
     this.pukRequired_ =
         !!simLockStatus && simLockStatus.LockType == CrOnc.LockType.PUK;
-    var lockEnabled = !!simLockStatus && simLockStatus.LockEnabled;
+    const lockEnabled = !!simLockStatus && simLockStatus.LockEnabled;
     if (lockEnabled != this.lockEnabled_) {
       this.setLockEnabled_ = lockEnabled;
       this.updateLockEnabled_();
@@ -223,7 +223,7 @@ Polymer({
 
     // If the PUK was activated while attempting to enter or change a pin,
     // close the dialog and open the unlock PUK dialog.
-    var showUnlockPuk = false;
+    let showUnlockPuk = false;
     if (this.$.enterPinDialog.open) {
       this.$.enterPinDialog.close();
       showUnlockPuk = true;
@@ -271,7 +271,7 @@ Polymer({
    * @private
    */
   setCellularSimState_: function(simState) {
-    var guid = (this.networkProperties && this.networkProperties.GUID) || '';
+    const guid = (this.networkProperties && this.networkProperties.GUID) || '';
     this.setInProgress_();
     this.networkingPrivate.setCellularSimState(guid, simState, () => {
       this.inProgress_ = false;
@@ -292,7 +292,7 @@ Polymer({
    * @private
    */
   unlockCellularSim_: function(pin, puk) {
-    var guid = (this.networkProperties && this.networkProperties.GUID) || '';
+    const guid = (this.networkProperties && this.networkProperties.GUID) || '';
     this.setInProgress_();
     this.networkingPrivate.unlockCellularSim(guid, pin, puk, () => {
       this.inProgress_ = false;
@@ -316,10 +316,10 @@ Polymer({
     event.stopPropagation();
     if (!this.enterPinEnabled_)
       return;
-    var pin = this.$.enterPin.value;
+    const pin = this.$.enterPin.value;
     if (!this.validatePin_(pin))
       return;
-    var simState = /** @type {!CrOnc.CellularSimState} */ ({
+    const simState = /** @type {!CrOnc.CellularSimState} */ ({
       currentPin: pin,
       requirePin: this.sendSimLockEnabled_,
     });
@@ -352,10 +352,10 @@ Polymer({
    */
   sendChangePin_: function(event) {
     event.stopPropagation();
-    var newPin = this.$.changePinNew1.value;
+    const newPin = this.$.changePinNew1.value;
     if (!this.validatePin_(newPin, this.$.changePinNew2.value))
       return;
-    var simState = /** @type {!CrOnc.CellularSimState} */ ({
+    const simState = /** @type {!CrOnc.CellularSimState} */ ({
       requirePin: true,
       currentPin: this.$.changePinOld.value,
       newPin: newPin
@@ -384,7 +384,7 @@ Polymer({
    */
   sendUnlockPin_: function(event) {
     event.stopPropagation();
-    var pin = this.$.unlockPin.value;
+    const pin = this.$.unlockPin.value;
     if (!this.validatePin_(pin))
       return;
     this.unlockCellularSim_(pin, '');
@@ -419,10 +419,10 @@ Polymer({
    */
   sendUnlockPuk_: function(event) {
     event.stopPropagation();
-    var puk = this.$.unlockPuk.value;
+    const puk = this.$.unlockPuk.value;
     if (!this.validatePuk_(puk))
       return;
-    var pin = this.$.unlockPin1.value;
+    const pin = this.$.unlockPin1.value;
     if (!this.validatePin_(pin, this.$.unlockPin2.value))
       return;
     this.unlockCellularSim_(pin, puk);
@@ -457,7 +457,7 @@ Polymer({
     if (this.error_ == ErrorType.NONE)
       return '';
     // TODO(stevenjb): Translate
-    var msg;
+    let msg;
     if (this.error_ == ErrorType.INCORRECT_PIN)
       msg = 'Incorrect PIN.';
     else if (this.error_ == ErrorType.INCORRECT_PUK)
@@ -470,7 +470,7 @@ Polymer({
       msg = 'Invalid PUK.';
     else
       return 'UNKNOWN ERROR';
-    var retriesLeft = this.simUnlockSent_ &&
+    const retriesLeft = this.simUnlockSent_ &&
         this.get('Cellular.SIMLockStatus.RetriesLeft', this.networkProperties);
     if (retriesLeft) {
       msg += ' Retries left: ' + retriesLeft.toString();