Instant: Use only one hidden WebContents per profile.

chrome/browser/task_manager/task_manager_resource_providers.cc

 // Copyright 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/task_manager/task_manager_resource_providers.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 10 matching lines @@
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/background/background_contents_service.h"
 #include "chrome/browser/background/background_contents_service_factory.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_process_manager.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/favicon/favicon_tab_helper.h"
+#include "chrome/browser/instant/instant_controller.h"
+#include "chrome/browser/instant/instant_preloader.h"
+#include "chrome/browser/instant/instant_service.h"
+#include "chrome/browser/instant/instant_service_factory.h"
 #include "chrome/browser/prerender/prerender_manager.h"
 #include "chrome/browser/prerender/prerender_manager_factory.h"
 #include "chrome/browser/printing/background_printing_manager.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_info_cache.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/tab_contents/background_contents.h"
 #include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
@@ skipping 111 matching lines @@
 bool IsContentsPrerendering(WebContents* web_contents) {
   Profile* profile =
       Profile::FromBrowserContext(web_contents->GetBrowserContext());
   prerender::PrerenderManager* prerender_manager =
       prerender::PrerenderManagerFactory::GetForProfile(profile);
   return prerender_manager &&
          prerender_manager->IsWebContentsPrerendering(web_contents, NULL);
 }
 
 bool IsContentsInstant(WebContents* web_contents) {
+  Profile* profile =
+      Profile::FromBrowserContext(web_contents->GetBrowserContext());
+  InstantService* instant_service =
+      InstantServiceFactory::GetForProfile(profile);
+  if (instant_service &&
+      instant_service->preloader()->contents() == web_contents)
+    return true;
+
   for (chrome::BrowserIterator it; !it.done(); it.Next()) {
     if (it->instant_controller() &&
-        it->instant_controller()->instant()->
-            GetOverlayContents() == web_contents) {
+        it->instant_controller()->instant()->GetOverlayContents() ==
+            web_contents)
       return true;
-    }
   }
 
   return false;
 }
 
 bool IsContentsBackgroundPrinted(WebContents* web_contents) {
   printing::BackgroundPrintingManager* printing_manager =
       g_browser_process->background_printing_manager();
   return printing_manager->HasPrintPreviewDialog(web_contents);
 }
@@ skipping 253 matching lines @@
   // are tab contents (WebContents serving as a tab in a Browser), Instant
   // pages, prerender pages, and background printed pages.
 
   // Add all the existing WebContentses.
   for (TabContentsIterator iterator; !iterator.done(); iterator.Next())
     Add(*iterator);
 
   // Add all the Instant pages.
   for (chrome::BrowserIterator it; !it.done(); it.Next()) {
     if (it->instant_controller() &&
-        it->instant_controller()->instant()->GetOverlayContents()) {
+        it->instant_controller()->instant()->GetOverlayContents())
       Add(it->instant_controller()->instant()->GetOverlayContents());
-    }
   }
 
-  // Add all the prerender pages.
   std::vector<Profile*> profiles(
       g_browser_process->profile_manager()->GetLoadedProfiles());
   for (size_t i = 0; i < profiles.size(); ++i) {
+    // Add all the prerender pages.
     prerender::PrerenderManager* prerender_manager =
         prerender::PrerenderManagerFactory::GetForProfile(profiles[i]);
     if (prerender_manager) {
       const std::vector<content::WebContents*> contentses =
           prerender_manager->GetAllPrerenderingContents();
       for (size_t j = 0; j < contentses.size(); ++j)
         Add(contentses[j]);
     }
+
+    // Add the Instant per-profile preloaded page.
+    InstantService* instant_service =
+        InstantServiceFactory::GetForProfile(profiles[i]);
+    if (instant_service && instant_service->preloader()->contents())
+      Add(instant_service->preloader()->contents());
   }
 
   // Add all the pages being background printed.
   printing::BackgroundPrintingManager* printing_manager =
       g_browser_process->background_printing_manager();
   for (printing::BackgroundPrintingManager::WebContentsSet::iterator i =
            printing_manager->begin();
        i != printing_manager->end(); ++i) {
     Add(*i);
   }
@@ skipping 1435 matching lines @@
     case content::NOTIFICATION_WEB_CONTENTS_CONNECTED:
       Add(web_contents->GetRenderViewHost());
       break;
     case content::NOTIFICATION_WEB_CONTENTS_DISCONNECTED:
       Remove(web_contents->GetRenderViewHost());
       break;
     default:
       NOTREACHED() << "Unexpected notification.";
   }
 }