Change HistoryService::ScheduleAutocomplete interface

chrome/browser/history/history_service.h

Index: chrome/browser/history/history_service.h
diff --git a/chrome/browser/history/history_service.h b/chrome/browser/history/history_service.h
index c986ce8c7133e05b160c2ffa30d2dd900ffd8092..2d1b988a8b37fe95c24ac3130a5dee60449d9063 100644
--- a/chrome/browser/history/history_service.h
+++ b/chrome/browser/history/history_service.h
@@ -43,11 +43,9 @@ class AndroidHistoryProviderService;
 #endif
 
 class GURL;
-class HistoryURLProvider;
 class PageUsageData;
 class PageUsageRequest;
 class Profile;
-struct HistoryURLProviderParams;
 struct ImportedFaviconUsage;
 
 namespace base {
@@ -619,8 +617,8 @@ class HistoryService : public CancelableRequestProvider,
   // Called by the HistoryURLProvider class to schedule an autocomplete, it
   // will be called back on the internal history thread with the history
   // database so it can query. See history_autocomplete.cc for a diagram.
-  void ScheduleAutocomplete(HistoryURLProvider* provider,
-                            HistoryURLProviderParams* params);
+  void ScheduleAutocomplete(const base::Callback<
+      void(history::HistoryBackend*, history::URLDatabase*)>& callback);
 
   // Broadcasts the given notification. This is called by the backend so that
   // the notification will be broadcast on the main thread.