Make PrerenderTracker's resource_throttle_io_thread_map_ use RenderFrame IDs instead of RenderView …

chrome/browser/ui/search/instant_search_prerenderer_unittest.cc

 // Copyright 2013 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/ui/search/instant_search_prerenderer.h"
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
@@ skipping 103 matching lines @@
     int ALLOW_UNUSED creator_child_id,
     const gfx::Size& ALLOW_UNUSED size,
     content::SessionStorageNamespace* session_storage_namespace) {
   prerender_contents_.reset(content::WebContents::CreateWithSessionStorage(
       content::WebContents::CreateParams(profile_),
       session_storage_namespace_map_));
   content::NavigationController::LoadURLParams params(url_);
   prerender_contents_->GetController().LoadURLWithParams(params);
   SearchTabHelper::CreateForWebContents(prerender_contents_.get());
 
-  AddObserver(prerender_manager()->prerender_tracker());
   prerendering_has_started_ = true;
   DCHECK(session_storage_namespace);
   session_storage_namespace_id_ = session_storage_namespace->id();
   NotifyPrerenderStart();
 
   if (call_did_finish_load_)
     DidFinishLoad(1, url_, true, NULL);
 }
 
 bool DummyPrerenderContents::GetChildId(int* child_id) const {
@@ skipping 260 matching lines @@
   // Open a search results page. Make sure the InstantSearchPrerenderer cancels
   // the active prerender request upon the receipt of empty search query.
   GURL url("https://www.google.com/alt#quux=&strk");
   browser()->OpenURL(content::OpenURLParams(url, Referrer(), CURRENT_TAB,
                                             content::PAGE_TRANSITION_TYPED,
                                             false));
   EXPECT_NE(GetPrerenderURL(), GetActiveWebContents()->GetURL());
   EXPECT_EQ(url, GetActiveWebContents()->GetURL());
   EXPECT_EQ(static_cast<PrerenderHandle*>(NULL), prerender_handle());
 }