Componentize TopSites, TopSitesBackend, TopSitesDatabase

chrome/browser/precache/most_visited_urls_provider.cc

 // Copyright 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/precache/most_visited_urls_provider.h"
 
 #include <list>
 
 #include "base/bind.h"
-#include "chrome/browser/history/top_sites.h"
 #include "components/history/core/browser/history_types.h"
+#include "components/history/core/browser/top_sites.h"
 #include "url/gurl.h"
 
 using history::MostVisitedURLList;
 
 namespace {
 
 void OnMostVisitedURLsReceived(
     const precache::URLListProvider::GetURLsCallback& callback,
     const MostVisitedURLList& most_visited_urls) {
   std::list<GURL> urls;
@@ skipping 14 matching lines @@
     : top_sites_(top_sites) {}
 
 MostVisitedURLsProvider::~MostVisitedURLsProvider() {}
 
 void MostVisitedURLsProvider::GetURLs(const GetURLsCallback& callback) {
   top_sites_->GetMostVisitedURLs(
       base::Bind(&OnMostVisitedURLsReceived, callback), false);
 }
 
 }  // namespace precache