Small net-internals UI tweaks for android.

chrome/browser/resources/net_internals/export_view.html

 <style>
 
 .export-view-explanation-warning {
   border: 2px solid red;
 }
 
 #export-view-privacy-warning {
   padding: 5px;
   color: red;
   border: 1px solid red;
 }
 
 #export-view-save-log-file {
   font-size: 100%;
   font-weight: bold;
 }
 
+#export-view-user-comments {
+  max-width: 100%;
+}
+
 </style>
 
 <div id=export-view-tab-content class=content-box>
 
   <h2>Dump data</h2>
   <div style="margin: 8px">
     <p><input id=export-view-privacy-stripping-checkbox type=checkbox checked=yes>
        <label id=export-view-privacy-stripping-checkbox>
          Strip private information (cookies and credentials).
        </label>
@@ skipping 15 matching lines @@
       For more information see: 
       <a href="chrome://net-internals/help.html" target="_blank">
         How to get data for bug reports?
       </a>
     </p>
   </div>
 
   <a style="display: none" id=export-view-download-anchor download="net-internals-log.json"></a>
 
 </div>