Added the list of active field groups to NetLog dump

chrome/browser/resources/net_internals/import_view.html

 <style>
 #import-view-command-line,
 #import-view-user-comments {
   /* Wrap long lines inside of PREs */
   white-space: pre-wrap;
 }
 
 #import-view-load-status-text {
   /* Wrap long lines inside of PREs */
   white-space: pre-wrap;
@@ skipping 46 matching lines @@
     </tr>
     <tr>
       <th>OS type</th>
       <td jscontent="constants.clientInfo.os_type"></td>
     </tr>
     <tr>
       <th>Command line</th>
       <td><pre jscontent="constants.clientInfo.command_line"></pre></td>
     </tr>
     <tr>
+      <th>Active Field Trial Groups</th>
+      <td><p jsselect="constants.activeFieldTrialGroups" jscontent="$this"></p></td>

[xunjieli, 2014/10/23 21:32:39]

Not sure if this is okay, but I used p tag here to introduce a line break after
each group.

[mmenke, 2014/10/23 21:46:45]

nit:  Can use lines less than 80-chars be doing:
<td>
  <p...></p>
</td>

We aren't strict about line length in HTML, but does make reviewing a little
nicer.

[mmenke, 2014/10/23 21:46:45]

That's fine - how long is the list?  I was thinking that it would be long enough
that it's better to just separate them with spaces.

[xunjieli, 2014/10/23 22:18:38]

I have 9. With space, the list looks a little crammed, but I think space works
better in case the list grows long. Thanks!

+    </tr>
+    <tr>
       <th>User comments</th>
       <td>
         <pre id=import-view-user-comments jscontent="userComments"
             jsdisplay="typeof userComments != 'undefined'"></pre>
       </td>
     </tr>
     </table>
   </div>
 </div>