Handle interface to prerenders.

chrome/browser/autocomplete/autocomplete_edit.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 "chrome/browser/autocomplete/autocomplete_edit.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/metrics/histogram.h"
@@ skipping 241 matching lines @@
   UMA_HISTOGRAM_ENUMERATION("AutocompleteActionPredictor.Action",
                             recommended_action,
                             AutocompleteActionPredictor::LAST_PREDICT_ACTION);
   string16 suggested_text;
 
   if (DoInstant(current_match, &suggested_text)) {
     SetSuggestedText(suggested_text, instant_complete_behavior_);
   } else {
     switch (recommended_action) {
       case AutocompleteActionPredictor::ACTION_PRERENDER:
-        DoPrerender(current_match);
+        DoPrerender(action_predictor, current_match);
         break;
       case AutocompleteActionPredictor::ACTION_PRECONNECT:
         DoPreconnect(current_match);
         break;
       case AutocompleteActionPredictor::ACTION_NONE:
         break;
       default:
         NOTREACHED() << "Unexpected recommended action: " << recommended_action;
         break;
     }
@@ skipping 819 matching lines @@
 
   // It's possible DoInstant() was called due to an OnChanged() event from the
   // omnibox view if the user clicked the renderer while IME composition was
   // active. In that case we still want to commit on mouse up, so don't call
   // Hide().
   if (!instant->commit_on_mouse_up())
     instant->Hide();
   return false;
 }
 
-void AutocompleteEditModel::DoPrerender(const AutocompleteMatch& match) {
+void AutocompleteEditModel::DoPrerender(
+    AutocompleteActionPredictor* action_predictor,
+    const AutocompleteMatch& match) {
+  DCHECK(action_predictor);
+
   // Do not prerender if the destination URL is the same as the current URL.
   if (match.destination_url == PermanentURL())
     return;
   // It's possible the tab strip does not have an active tab contents, for
   // instance if the tab has been closed or on return from a sleep state
   // (http://crbug.com/105689)
-  TabContents* tab = controller_->GetTabContents();
-  if (!tab)
-    return;
-  prerender::PrerenderManager* prerender_manager =
-      prerender::PrerenderManagerFactory::GetForProfile(tab->profile());
-  if (prerender_manager) {
+  if (TabContents* tab = controller_->GetTabContents()) {
     content::RenderViewHost* current_host =
         tab->web_contents()->GetRenderViewHost();
-    prerender_manager->AddPrerenderFromOmnibox(
+    prerender::PrerenderHandle prerender = action_predictor->StartPrerendering(
         match.destination_url, current_host->GetSessionStorageNamespace());
+    match.prerender = prerender->AsWeakPtr();
   }
 }
 
 void AutocompleteEditModel::DoPreconnect(const AutocompleteMatch& match) {
   if (!match.destination_url.SchemeIs(chrome::kExtensionScheme)) {
     // Warm up DNS Prefetch cache, or preconnect to a search service.
     UMA_HISTOGRAM_ENUMERATION("Autocomplete.MatchType", match.type,
                               AutocompleteMatch::NUM_TYPES);
     if (profile_->GetNetworkPredictor()) {
       profile_->GetNetworkPredictor()->AnticipateOmniboxUrl(
@@ skipping 23 matching lines @@
     return metrics::OmniboxEventProto_PageClassification_INVALID_SPEC;
   const std::string& url = gurl.spec();
   if (url == chrome::kChromeUINewTabURL)
     return metrics::OmniboxEventProto_PageClassification_NEW_TAB_PAGE;
   if (url == chrome::kAboutBlankURL)
     return metrics::OmniboxEventProto_PageClassification_BLANK;
   if (url == profile()->GetPrefs()->GetString(prefs::kHomePage))
     return metrics::OmniboxEventProto_PageClassification_HOMEPAGE;
   return metrics::OmniboxEventProto_PageClassification_OTHER;
 }