Abstract code filtering URLs added to the history

components/history/core/browser/history_client.cc

Index: components/history/core/browser/history_client.cc
diff --git a/components/history/core/browser/history_client.cc b/components/history/core/browser/history_client.cc
index 194a616193a51b72b0a7ce26360402bd70cbe305..f73ae1fa4a4127e7b155381be7a2e5b99811082f 100644
--- a/components/history/core/browser/history_client.cc
+++ b/components/history/core/browser/history_client.cc
@@ -19,6 +19,10 @@ bool HistoryClient::IsBookmarked(const GURL& url) {
 void HistoryClient::GetBookmarks(std::vector<URLAndTitle>* bookmarks) {
 }
 
+bool HistoryClient::CanAddURL(const GURL& url) {
+  return true;
+}
+
 void HistoryClient::NotifyProfileError(sql::InitStatus init_status) {
 }