[Session restore] Add MRU logic to loading of background pages.

chrome/browser/ui/browser.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/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // defined(OS_WIN)
@@ skipping 52 matching lines @@
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/notifications/notification_ui_manager.h"
 #include "chrome/browser/pepper_broker_infobar_delegate.h"
 #include "chrome/browser/prefs/incognito_mode_prefs.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_destroyer.h"
 #include "chrome/browser/profiles/profile_metrics.h"
 #include "chrome/browser/profiles/profiles_state.h"
 #include "chrome/browser/repost_form_warning_controller.h"
 #include "chrome/browser/search/search.h"
+#include "chrome/browser/sessions/session_restore.h"
 #include "chrome/browser/sessions/session_service.h"
 #include "chrome/browser/sessions/session_service_factory.h"
 #include "chrome/browser/sessions/session_tab_helper.h"
 #include "chrome/browser/sessions/tab_restore_service.h"
 #include "chrome/browser/sessions/tab_restore_service_factory.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/browser/sync/sync_ui_util.h"
 #include "chrome/browser/tab_contents/retargeting_details.h"
 #include "chrome/browser/tab_contents/tab_util.h"
@@ skipping 981 matching lines @@
     // Show the loading state (if any).
     status_bubble->SetStatus(CoreTabHelper::FromWebContents(
         tab_strip_model_->GetActiveWebContents())->GetStatusText());
   }
 
   if (HasFindBarController()) {
     find_bar_controller_->ChangeWebContents(new_contents);
     find_bar_controller_->find_bar()->MoveWindowIfNecessary(gfx::Rect());
   }
 
-  // Update sessions. Don't force creation of sessions. If sessions doesn't
-  // exist, the change will be picked up by sessions when created.
+  // Update sessions (selected tab index and last active time). Don't force
+  // creation of sessions. If sessions doesn't exist, the change will be picked
+  // up by sessions when created.
   SessionService* session_service =
       SessionServiceFactory::GetForProfileIfExisting(profile_);
   if (session_service && !tab_strip_model_->closing_all()) {
     session_service->SetSelectedTabInWindow(session_id(),
                                             tab_strip_model_->active_index());
+    if (SessionRestore::GetSmartRestoreMode() ==
+        SessionRestore::SMART_RESTORE_MODE_MRU) {
+      SessionTabHelper* session_tab_helper =
+          SessionTabHelper::FromWebContents(new_contents);
+      session_service->SetLastActiveTime(session_id(),
+                                         session_tab_helper->session_id(),
+                                         base::TimeTicks::Now());
+    }
   }
 
   // This needs to be called after notifying SearchDelegate.
   if (instant_controller_)
     instant_controller_->ActiveTabChanged();
 
   autofill::ChromeAutofillClient::FromWebContents(new_contents)->TabActivated();
   SearchTabHelper::FromWebContents(new_contents)->OnTabActivated();
 }
 
@@ skipping 1512 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         ui::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }