Componentize TopSites, TopSitesBackend, TopSitesDatabase

chrome/browser/history/top_sites.cc

-// Copyright (c) 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/history/top_sites.h"
-
-#include "base/strings/string_util.h"
-#include "chrome/browser/history/top_sites_impl.h"
-#include "chrome/grit/chromium_strings.h"
-#include "chrome/grit/generated_resources.h"
-#include "chrome/grit/locale_settings.h"
-#include "grit/theme_resources.h"
-
-namespace history {
-
-const TopSites::PrepopulatedPage kPrepopulatedPages[] = {
-#if !defined(OS_ANDROID)
-    {IDS_CHROME_WELCOME_URL,
-     IDS_NEW_TAB_CHROME_WELCOME_PAGE_TITLE,
-     IDR_PRODUCT_LOGO_16,
-     IDR_NEWTAB_CHROME_WELCOME_PAGE_THUMBNAIL,
-     SkColorSetRGB(0, 147, 60)},
-    {IDS_WEBSTORE_URL,
-     IDS_EXTENSION_WEB_STORE_TITLE,
-     IDR_WEBSTORE_ICON_16,
-     IDR_NEWTAB_WEBSTORE_THUMBNAIL,
-     SkColorSetRGB(63, 132, 197)}
-#endif
-};
-
-TopSites::TopSites() {
-}
-
-TopSites::~TopSites() {
-}
-
-void TopSites::AddObserver(TopSitesObserver* observer) {
-  observer_list_.AddObserver(observer);
-}
-
-void TopSites::RemoveObserver(TopSitesObserver* observer) {
-  observer_list_.RemoveObserver(observer);
-}
-
-void TopSites::NotifyTopSitesLoaded() {
-  FOR_EACH_OBSERVER(TopSitesObserver, observer_list_, TopSitesLoaded(this));
-}
-
-void TopSites::NotifyTopSitesChanged() {
-  FOR_EACH_OBSERVER(TopSitesObserver, observer_list_, TopSitesChanged(this));
-}
-
-}  // namespace history