[polish] Make link targets on about:net-internals open in new window.

chrome/browser/resources/net_internals/dns_view.html

 <!-- Host resolver info -->
 <div id=dns-view-tab-content class=content-box>
   <h4>Host resolver</h4>
   <ul>
     <li><a href='#events&q=type:HOST_RESOLVER_IMPL_REQUEST%20type:HOST_RESOLVER_IMPL_JOB%20is:active'>View pending lookups</a></li>
     <li>Default address family: <span id=dns-view-default-family></span>
       <span id=dns-view-ipv6-disabled class=warning-text style="display: none;">
         (IPv6 disabled)
-        <input type=button value="Enable IPv6" id=dns-view-enable-ipv6 class="hideOnLoadLog" />
+        <input type=button value="Enable IPv6" id=dns-view-enable-ipv6 class="hide-when-not-capturing" />
       </span>
     </li>
   </ul>
 
   <h4>
     Host resolver cache
-    <input type=button value="Clear host cache" id=dns-view-clear-cache class="hideOnLoadLog" />
+    <input type=button value="Clear host cache" id=dns-view-clear-cache class="hide-when-not-capturing" />
   </h4>
   <ul>
     <li>Capacity: <span id=dns-view-cache-capacity></span></li>
   </ul>
   <h4>
     Current State
   </h4>
   <ul>
     <li>Active entries: <span id=dns-view-cache-active></span></li>
     <li>Expired entries: <span id=dns-view-cache-expired></span></li>
   </ul>
 
   <table class="styled-table">
     <thead>
       <tr>
         <th>Hostname</th>
         <th>Family</th>
         <th>Addresses</th>
         <th>Expires</th>
       </tr>
     </thead>
     <tbody id=dns-view-cache-tbody>
     </tbody>
   </table>
 </div>