Do not allow network status updates while password field is active.

chrome/browser/resources/options/chromeos_internet_network_element.js

Index: chrome/browser/resources/options/chromeos_internet_network_element.js
diff --git a/chrome/browser/resources/options/chromeos_internet_network_element.js b/chrome/browser/resources/options/chromeos_internet_network_element.js
index 7541f2b314289c7ed594de034c50f82eaa00899e..93a7a406862405f566f57e9e30f3a237ea33abd0 100644
--- a/chrome/browser/resources/options/chromeos_internet_network_element.js
+++ b/chrome/browser/resources/options/chromeos_internet_network_element.js
@@ -70,6 +70,7 @@ cr.define('options.internet', function() {
               if (this.childNodes[i] != item)
                 this.childNodes[i].hidePassword();
             }
+            InternetOptions.unlockUpdates();
             // If clicked on other networks item.
             if (data && data.servicePath == '?') {
               item.showOtherLogin();
@@ -254,6 +255,9 @@ cr.define('options.internet', function() {
     showPassword: function() {
       if (this.connecting)
         return;
+
+      InternetOptions.lockUpdates();
+
       var passwordDiv = this.ownerDocument.createElement('div');
       passwordDiv.className = 'network-password';
       var passInput = this.ownerDocument.createElement('input');
@@ -317,6 +321,8 @@ cr.define('options.internet', function() {
       if (this.connecting)
         return;
 
+      InternetOptions.lockUpdates();
+
       var ssidDiv = this.ownerDocument.createElement('div');
       ssidDiv.className = 'network-password';
       var ssidInput = this.ownerDocument.createElement('input');