net-internals: Add buttons to close idle and flush all sockets

chrome/browser/resources/net_internals/index.html

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 <head i18n-values="dir:textdirection;">
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 Copyright (c) 2011 The Chromium Authors. All rights reserved.
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   <head>
     <link rel="stylesheet" href="main.css">
     <link rel="stylesheet" href="tabswitcherview.css">
@@ skipping 122 matching lines @@
             <th>Addresses</th>
             <th>Expires</th>
           </tr>
         </thead>
         <tbody id=hostResolverCacheTbody>
         </tbody>
       </table>
     </div>
     <div id=socketsTabContent>
       <h4>Socket pools</h4>
-      <a href='#events&q=type:SOCKET%20is:active'>View live sockets</a>
+      <ul>
+        <li><input type=button value="Close idle sockets" id=socketPoolCloseIdleButton />
+        </li>
+        <li><input type=button value="Flush socket pools" id=socketPoolFlushButton />
+          <span class=warningText >May break pages with active connections</span>
+        </li>
+        <li><a href='#events&q=type:SOCKET%20is:active'>View live sockets</a>
+        </li>
+      </ul>
       <p>
         <div id=socketPoolDiv>
         </div>
       </p>
       <p>
         <div id=socketPoolGroupsDiv>
         </div>
       </p>
     </div>
     <div id=spdyTabContent>
@@ skipping 302 matching lines @@
           <td class=tabSwitcherSpacer>&nbsp;</td>
           <th id=detailsTimelineTab>Timeline</th>
         </tr>
       </table>
       <div class=tabSwitcherLine></div>
     </div>
     <div id=detailsLogBox></div>
     <div id=detailsTimelineBox></div>
   </body>
 </html>