Add observer interface to PrerenderContents.

chrome/browser/prerender/prerender_browsertest.cc

 // Copyright (c) 2012 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 <deque>
 
 #include "base/command_line.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
@@ skipping 190 matching lines @@
   bool waiting_for_channel_destruction_;
 
   DISALLOW_COPY_AND_ASSIGN(ChannelDestructionWatcher);
 };
 
 // PrerenderContents that stops the UI message loop on DidStopLoading().
 class TestPrerenderContents : public PrerenderContents {
  public:
   TestPrerenderContents(
       PrerenderManager* prerender_manager,
-      PrerenderTracker* prerender_tracker,
       Profile* profile,
       const GURL& url,
       const content::Referrer& referrer,
       Origin origin,
       int expected_number_of_loads,
       FinalStatus expected_final_status,
       bool prerender_should_wait_for_ready_title)
-      : PrerenderContents(prerender_manager, prerender_tracker, profile, url,
+      : PrerenderContents(prerender_manager, profile, url,
                           referrer, origin, PrerenderManager::kNoExperiment),
         number_of_loads_(0),
         expected_number_of_loads_(expected_number_of_loads),
         expected_final_status_(expected_final_status),
         new_render_view_host_(NULL),
         was_hidden_(false),
         was_shown_(false),
         should_be_shown_(expected_final_status == FINAL_STATUS_USED),
         quit_message_loop_on_destruction_(
             expected_final_status != FINAL_STATUS_EVICTED &&
@@ skipping 203 matching lines @@
       : expected_number_of_loads_(expected_number_of_loads),
         expected_final_status_queue_(expected_final_status_queue),
         prerender_should_wait_for_ready_title_(
             prerender_should_wait_for_ready_title) {
     VLOG(1) << "Factory created with queue length " <<
                expected_final_status_queue_.size();
   }
 
   virtual PrerenderContents* CreatePrerenderContents(
       PrerenderManager* prerender_manager,
-      PrerenderTracker* prerender_tracker,
       Profile* profile,
       const GURL& url,
       const content::Referrer& referrer,
       Origin origin,
       uint8 experiment_id) OVERRIDE {
     FinalStatus expected_final_status = FINAL_STATUS_MAX;
     if (!expected_final_status_queue_.empty()) {
       expected_final_status = expected_final_status_queue_.front();
       expected_final_status_queue_.pop_front();
     }
     VLOG(1) << "Creating prerender contents for " << url.path() <<
                " with expected final status " << expected_final_status;
     VLOG(1) << expected_final_status_queue_.size() << " left in the queue.";
-    return new TestPrerenderContents(prerender_manager, prerender_tracker,
+    return new TestPrerenderContents(prerender_manager,
                                      profile, url, referrer, origin,
                                      expected_number_of_loads_,
                                      expected_final_status,
                                      prerender_should_wait_for_ready_title_);
   }
 
  private:
   int expected_number_of_loads_;
   std::deque<FinalStatus> expected_final_status_queue_;
   bool prerender_should_wait_for_ready_title_;
@@ skipping 2051 matching lines @@
   channel_close_watcher.WatchChannel(
       chrome::GetActiveWebContents(browser())->GetRenderProcessHost());
   NavigateToDestURL();
   channel_close_watcher.WaitForChannelClose();
 
   ASSERT_TRUE(IsEmptyPrerenderLinkManager());
   ASSERT_TRUE(catcher.GetNextResult()) << catcher.message();
 }
 
 }  // namespace prerender