ntp: remove ShownSectionHandler and all references to it

chrome/browser/ui/webui/ntp/new_tab_ui.cc

 // Copyright (c) 2011 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 "build/build_config.h"
 
 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 17 matching lines @@
 #include "chrome/browser/ui/webui/ntp/bookmarks_handler.h"
 #include "chrome/browser/ui/webui/ntp/favicon_webui_handler.h"
 #include "chrome/browser/ui/webui/ntp/foreign_session_handler.h"
 #include "chrome/browser/ui/webui/ntp/most_visited_handler.h"
 #include "chrome/browser/ui/webui/ntp/new_tab_page_handler.h"
 #include "chrome/browser/ui/webui/ntp/new_tab_page_sync_handler.h"
 #include "chrome/browser/ui/webui/ntp/ntp_login_handler.h"
 #include "chrome/browser/ui/webui/ntp/ntp_resource_cache.h"
 #include "chrome/browser/ui/webui/ntp/ntp_resource_cache_factory.h"
 #include "chrome/browser/ui/webui/ntp/recently_closed_tabs_handler.h"
-#include "chrome/browser/ui/webui/ntp/shown_sections_handler.h"
 #include "chrome/browser/ui/webui/theme_source.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/browser/user_metrics.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 26 matching lines @@
   focus_location_bar_by_default_ = true;
   should_hide_url_ = true;
   overridden_title_ = l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE);
 
   // We count all link clicks as AUTO_BOOKMARK, so that site can be ranked more
   // highly. Note this means we're including clicks on not only most visited
   // thumbnails, but also clicks on recently bookmarked.
   link_transition_type_ = content::PAGE_TRANSITION_AUTO_BOOKMARK;
 
   if (!GetProfile()->IsOffTheRecord()) {
-    PrefService* pref_service = GetProfile()->GetPrefs();
-    AddMessageHandler((new ShownSectionsHandler(pref_service))->Attach(this));
     AddMessageHandler((new browser_sync::ForeignSessionHandler())->
         Attach(this));
     AddMessageHandler((new MostVisitedHandler())->Attach(this));
     AddMessageHandler((new RecentlyClosedTabsHandler())->Attach(this));
     AddMessageHandler((new MetricsHandler())->Attach(this));
     if (GetProfile()->IsSyncAccessible())
       AddMessageHandler((new NewTabPageSyncHandler())->Attach(this));
     ExtensionService* service = GetProfile()->GetExtensionService();
     // We might not have an ExtensionService (on ChromeOS when not logged in
     // for example).
@@ skipping 121 matching lines @@
 }
 
 void NewTabUI::InitializeCSSCaches() {
   Profile* profile = GetProfile();
   ThemeSource* theme = new ThemeSource(profile);
   profile->GetChromeURLDataManager()->AddDataSource(theme);
 }
 
 // static
 void NewTabUI::RegisterUserPrefs(PrefService* prefs) {
-  prefs->RegisterIntegerPref(prefs::kNTPPrefVersion,
-                             0,
-                             PrefService::UNSYNCABLE_PREF);
-
   NewTabPageHandler::RegisterUserPrefs(prefs);
   AppLauncherHandler::RegisterUserPrefs(prefs);
   MostVisitedHandler::RegisterUserPrefs(prefs);
-  ShownSectionsHandler::RegisterUserPrefs(prefs);
   if (NTP4Enabled())
     BookmarksHandler::RegisterUserPrefs(prefs);
-
-  UpdateUserPrefsVersion(prefs);
 }
 
 // static
-bool NewTabUI::UpdateUserPrefsVersion(PrefService* prefs) {
-  const int old_pref_version = prefs->GetInteger(prefs::kNTPPrefVersion);
-  if (old_pref_version != current_pref_version()) {
-    MigrateUserPrefs(prefs, old_pref_version, current_pref_version());
-    prefs->SetInteger(prefs::kNTPPrefVersion, current_pref_version());
-    return true;
-  }
-  return false;
-}
-
-// static
-void NewTabUI::MigrateUserPrefs(PrefService* prefs, int old_pref_version,
-                                int new_pref_version) {
-  ShownSectionsHandler::MigrateUserPrefs(prefs, old_pref_version,
-                                         current_pref_version());
-}
-
-// static
 void NewTabUI::SetURLTitleAndDirection(DictionaryValue* dictionary,
                                        const string16& title,
                                        const GURL& gurl) {
   dictionary->SetString("url", gurl.spec());
 
   bool using_url_as_the_title = false;
   string16 title_to_set(title);
   if (title_to_set.empty()) {
     using_url_as_the_title = true;
     title_to_set = UTF8ToUTF16(gurl.spec());
@@ skipping 66 matching lines @@
   SendResponse(request_id, html_bytes);
 }
 
 std::string NewTabUI::NewTabHTMLSource::GetMimeType(const std::string&) const {
   return "text/html";
 }
 
 bool NewTabUI::NewTabHTMLSource::ShouldReplaceExistingSource() const {
   return false;
 }