[Popular Sites] Split PopularSites interface and PopularSitesImpl

chrome/browser/ntp_tiles/chrome_popular_sites_factory.cc

Index: chrome/browser/ntp_tiles/chrome_popular_sites_factory.cc
diff --git a/chrome/browser/ntp_tiles/chrome_popular_sites_factory.cc b/chrome/browser/ntp_tiles/chrome_popular_sites_factory.cc
index 0970f359f5bee9bdd20c06773c6a08a311ec140c..22c00042d80506b167c6cf1b29f0c1b424ce4432 100644
--- a/chrome/browser/ntp_tiles/chrome_popular_sites_factory.cc
+++ b/chrome/browser/ntp_tiles/chrome_popular_sites_factory.cc
@@ -19,7 +19,7 @@ std::unique_ptr<ntp_tiles::PopularSites>
 ChromePopularSitesFactory::NewForProfile(Profile* profile) {
   base::FilePath directory;  // remains empty if PathService::Get() fails.
   PathService::Get(chrome::DIR_USER_DATA, &directory);
-  return base::MakeUnique<ntp_tiles::PopularSites>(
+  return base::MakeUnique<ntp_tiles::PopularSitesImpl>(
       content::BrowserThread::GetBlockingPool(), profile->GetPrefs(),
       TemplateURLServiceFactory::GetForProfile(profile),
       g_browser_process->variations_service(), profile->GetRequestContext(),