Remove dependency of HistoryServiceFactory on ChromeBookmarkClientFactory

components/history/core/browser/history_client.h

Index: components/history/core/browser/history_client.h
diff --git a/components/history/core/browser/history_client.h b/components/history/core/browser/history_client.h
index ae9c19562e2fc0bde101137654331c79a8b88edc..27e04140ee63e662254ff2d4da7f09491b7c2fba 100644
--- a/components/history/core/browser/history_client.h
+++ b/components/history/core/browser/history_client.h
@@ -20,6 +20,7 @@ namespace history {
 class HistoryBackend;
 class HistoryBackendClient;
 class HistoryDatabase;
+class HistoryService;
 class ThumbnailDatabase;
 
 // This class abstracts operations that depend on the embedder's environment,
@@ -29,6 +30,9 @@ class HistoryClient {
   HistoryClient() {}
   virtual ~HistoryClient() {}
 
+  // Called upon HistoryService creation.
+  virtual void OnHistoryServiceCreated(HistoryService* history_service) = 0;
+
   // Called before HistoryService is shutdown.
   virtual void Shutdown() = 0;