Componentize TopSites, TopSitesBackend, TopSitesDatabase

chrome/browser/thumbnails/thumbnail_service_unittest.cc

Index: chrome/browser/thumbnails/thumbnail_service_unittest.cc
diff --git a/chrome/browser/thumbnails/thumbnail_service_unittest.cc b/chrome/browser/thumbnails/thumbnail_service_unittest.cc
index 6de7f7c415038e0aebcfbfed2111bbd9aec079f3..50e1254eadc818d0031d924f6a61510368f6c87a 100644
--- a/chrome/browser/thumbnails/thumbnail_service_unittest.cc
+++ b/chrome/browser/thumbnails/thumbnail_service_unittest.cc
@@ -19,7 +19,8 @@ namespace {
 class MockTopSites : public history::TopSitesImpl {
  public:
   explicit MockTopSites(Profile* profile)
-      : history::TopSitesImpl(profile), capacity_(1) {}
+      : history::TopSitesImpl(profile, history::PrepopulatedPageList()),
+        capacity_(1) {}
 
   // history::TopSitesImpl overrides.
   bool IsNonForcedFull() override { return known_url_map_.size() >= capacity_; }