History: Fix flicker of sync notices when loading new data

chrome/browser/ui/webui/browsing_history_handler.cc

Index: chrome/browser/ui/webui/browsing_history_handler.cc
diff --git a/chrome/browser/ui/webui/browsing_history_handler.cc b/chrome/browser/ui/webui/browsing_history_handler.cc
index dbc8eccae65de458d204bbf0e76f789f42f31651..9bb4a55c712ef70b68fe3ddb38d4573fd5ab3954 100644
--- a/chrome/browser/ui/webui/browsing_history_handler.cc
+++ b/chrome/browser/ui/webui/browsing_history_handler.cc
@@ -418,6 +418,7 @@ void BrowsingHistoryHandler::OnStateChanged() {
 }
 
 void BrowsingHistoryHandler::WebHistoryTimeout() {
+  has_synced_results_ = false;
   // TODO(dubroy): Communicate the failure to the front end.
   if (!query_task_tracker_.HasTrackedTasks())
     ReturnResultsToFrontEnd();
@@ -438,8 +439,6 @@ void BrowsingHistoryHandler::QueryHistory(
 
   query_results_.clear();
   results_info_value_.Clear();
-  has_synced_results_ = false;
-  has_other_forms_of_browsing_history_ = false;
 
   history::HistoryService* hs = HistoryServiceFactory::GetForProfile(
       profile, ServiceAccessType::EXPLICIT_ACCESS);
@@ -481,6 +480,8 @@ void BrowsingHistoryHandler::QueryHistory(
   } else {
     // The notice could not have been shown, because there is no web history.
     RecordMetricsForNoticeAboutOtherFormsOfBrowsingHistory(false);
+    has_synced_results_ = false;
+    has_other_forms_of_browsing_history_ = false;
   }
 }