update obsolete code.google.com documentation links

chrome/android/java/src/org/chromium/chrome/browser/omaha/RequestGenerator.java

 // Copyright 2015 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.
 
 package org.chromium.chrome.browser.omaha;
 
 import android.content.Context;
 import android.os.Build;
 import android.util.Xml;
 
@@ skipping 29 matching lines @@
             long currentTimestamp, long installTimestamp, boolean sendInstallEvent) {
         if (sendInstallEvent) {
             return INSTALL_AGE_IMMEDIATELY_AFTER_INSTALLING;
         } else {
             return Math.max(0L, (currentTimestamp - installTimestamp) / MS_PER_DAY);
         }
     }
 
     /**
      * Generates the XML for the current request.
-     * Follows the format laid out at http://code.google.com/p/omaha/wiki/ServerProtocol
+     * Follows the format laid out at https://github.com/google/omaha/blob/wiki/ServerProtocolV3.md
      * with some additional dummy values supplied.
      */
     public String generateXML(String sessionID, String versionName, long installAge,
             RequestData data) throws RequestFailureException {
         XmlSerializer serializer = Xml.newSerializer();
         StringWriter writer = new StringWriter();
         try {
             serializer.setOutput(writer);
             serializer.startDocument("UTF-8", true);
 
@@ skipping 110 matching lines @@
 
     /** Returns the brand code. If one can't be retrieved, return "". */
     protected abstract String getBrand();
 
     /** Returns the current client ID. */
     protected abstract String getClient();
 
     /** URL for the Omaha server. */
     public abstract String getServerUrl();
 }