Change var blah_blah -> blahBlah.

chrome/browser/resources/chromeos/diagnostics/main.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var localStrings = new LocalStrings();
 
 cr.define('diag', function() {
   /**
    * Encapsulated handling of the diagnostics page.
    */
@@ skipping 96 matching lines @@
     /**
      * Updates the connectivity status with netif information.
      * @param {Object} netifStatus Dictionary of network adapter status.
      */
     setNetifStatus_: function(netifStatus) {
       // Hide the "loading" message and show the "choose-adapter" message.
       $('loading').hidden = true;
       $('choose-adapter').hidden = false;
 
       // Update netif state.
-      var found_valid_ip = false;
+      var foundValidIp = false;
       for (var i = 0; i < DiagPage.AdapterType.length; i++) {
         var adapterType = DiagPage.AdapterType[i];
         var status = netifStatus[adapterType.adapter];
         if (!status)
           this.adapterStatus_[i] = DiagPage.AdapterStatus.NOT_FOUND;
         else if (!status.flags || status.flags.indexOf('up') == -1)
           this.adapterStatus_[i] = DiagPage.AdapterStatus.DISABLED;
         else if (!status.ipv4)
           this.adapterStatus_[i] = DiagPage.AdapterStatus.NO_IP;
         else
           this.adapterStatus_[i] = DiagPage.AdapterStatus.VALID_IP;
 
         if (this.adapterStatus_[i] == DiagPage.AdapterStatus.VALID_IP)
-          found_valid_ip = true;
+          foundValidIp = true;
       }
 
       // If we have valid IP, start ping test.
-      if (found_valid_ip &&
+      if (foundValidIp &&
           this.pingTestStatus_ == DiagPage.PingTestStatus.NOT_STARTED) {
         this.pingTestStatus_ == DiagPage.PingTestStatus.IN_PROGRESS;
         chrome.send('testICMP', [String('8.8.8.8')]);
       }
 
       // Update UI
       this.updateAdapterSelection_();
       this.updateConnectivityStatus_();
 
       // Clear the getNetifStatusInProgress flag.
@@ skipping 180 matching lines @@
     DiagPage: DiagPage
   };
 });
 
 /**
  * Initialize the DiagPage upon DOM content loaded.
  */
 document.addEventListener('DOMContentLoaded', function() {
   diag.DiagPage.getInstance().initialize();
 });