[Popular Sites] Split PopularSites interface and PopularSitesImpl

chrome/browser/android/ntp/popular_sites.cc

Index: chrome/browser/android/ntp/popular_sites.cc
diff --git a/chrome/browser/android/ntp/popular_sites.cc b/chrome/browser/android/ntp/popular_sites.cc
index 3413ce436c3532d4787b60ab4ffdefca83daed26..c09ba8fc6200ca83036cdeb84888efb85ae40170 100644
--- a/chrome/browser/android/ntp/popular_sites.cc
+++ b/chrome/browser/android/ntp/popular_sites.cc
@@ -15,11 +15,11 @@
 #include "components/safe_json/safe_json_parser.h"
 #include "content/public/browser/browser_thread.h"
 
-std::unique_ptr<ntp_tiles::PopularSites> ChromePopularSites::NewForProfile(
+std::unique_ptr<ntp_tiles::PopularSitesImpl> ChromePopularSites::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(),