ntp_tiles: Cleanup enum names

chrome/browser/ui/search/search_tab_helper.h

Index: chrome/browser/ui/search/search_tab_helper.h
diff --git a/chrome/browser/ui/search/search_tab_helper.h b/chrome/browser/ui/search/search_tab_helper.h
index 1dfba428ee96d894c3e85cb7f9a4f8ead63d5919..6c2587abdf22f210ad8ac3ac48e075865e2aaa5f 100644
--- a/chrome/browser/ui/search/search_tab_helper.h
+++ b/chrome/browser/ui/search/search_tab_helper.h
@@ -16,7 +16,7 @@
 #include "chrome/browser/ui/search/search_model.h"
 #include "chrome/common/search/instant_types.h"
 #include "chrome/common/search/ntp_logging_events.h"
-#include "components/ntp_tiles/ntp_tile_source.h"
+#include "components/ntp_tiles/tile_source.h"
 #include "components/omnibox/common/omnibox_focus_state.h"
 #include "content/public/browser/reload_type.h"
 #include "content/public/browser/web_contents_observer.h"
@@ -139,12 +139,10 @@ class SearchTabHelper : public content::WebContentsObserver,
   void OnUndoMostVisitedDeletion(const GURL& url) override;
   void OnUndoAllMostVisitedDeletions() override;
   void OnLogEvent(NTPLoggingEventType event, base::TimeDelta time) override;
-  void OnLogMostVisitedImpression(
-      int position,
-      ntp_tiles::NTPTileSource tile_source) override;
-  void OnLogMostVisitedNavigation(
-      int position,
-      ntp_tiles::NTPTileSource tile_source) override;
+  void OnLogMostVisitedImpression(int position,
+                                  ntp_tiles::TileSource tile_source) override;
+  void OnLogMostVisitedNavigation(int position,
+                                  ntp_tiles::TileSource tile_source) override;
   void PasteIntoOmnibox(const base::string16& text) override;
   void OnChromeIdentityCheck(const base::string16& identity) override;
   void OnHistorySyncCheck() override;