For prerendering, keep track of all the intermediate redirects, and hook into...

chrome/browser/prerender/prerender_resource_handler_unittest.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/prerender/prerender_resource_handler.h"
 #include "chrome/common/resource_response.h"
 #include "net/http/http_response_headers.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
@@ skipping 82 matching lines @@
                 mock_handler_,
                 NewCallback(
                     this,
                     &PrerenderResourceHandlerTest::SetLastHandledURL)))),
         ui_thread_(BrowserThread::UI, &loop_),
         default_url_("http://www.prerender.com") {
     pre_handler_->set_prerender_duration(prerender_duration_);
     pre_handler_->set_get_current_time_function(&FixedGetCurrentTime);
   }
 
-  void SetLastHandledURL(const GURL& url) {
+  void SetLastHandledURL(const GURL& url, const std::vector<GURL>& alias_url) {

[cbentzel, 2011/01/14 02:01:13]

I recommend copying alias_urls into a member variable here, and validating.
Particularly in the PrerenderRedirect case.

[tburkard, 2011/01/18 22:29:18]

Done.

     last_handled_url_ = url;
   }
 
   // Common logic shared by many of the tests
   void StartPrerendering(const std::string& mime_type,
                          const char* headers) {
     int request_id = 1;
     bool defer = false;
     EXPECT_TRUE(pre_handler_->OnWillStart(request_id, default_url_, &defer));
     EXPECT_FALSE(defer);
@@ skipping 90 matching lines @@
   response->response_head.headers = CreateResponseHeaders(
       "HTTP/1.1 200 OK\n"
       "cache-control: max-age=86400\n");
   EXPECT_TRUE(pre_handler_->OnResponseStarted(request_id, response));
   EXPECT_TRUE(last_handled_url_.is_empty());
   loop_.RunAllPending();
   EXPECT_EQ(url_redirect, last_handled_url_);
 }
 
 }
-