Split HistoryClient in two objects

components/history/core/browser/history_backend_client.cc

Index: components/history/core/browser/history_backend_client.cc
diff --git a/components/history/core/browser/visit_delegate.cc b/components/history/core/browser/history_backend_client.cc
similarity index 57%
copy from components/history/core/browser/visit_delegate.cc
copy to components/history/core/browser/history_backend_client.cc
index 5df16c5cf3e537b9be40a8aa431784a6287acef1..082a07d934f3bbb0e979609d40d2d7aef6fbc509 100644
--- a/components/history/core/browser/visit_delegate.cc
+++ b/components/history/core/browser/history_backend_client.cc
@@ -2,14 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "components/history/core/browser/visit_delegate.h"
+#include "components/history/core/browser/history_backend_client.h"
 
 namespace history {
 
-VisitDelegate::VisitDelegate() {
+HistoryBackendClient::HistoryBackendClient() {
 }
 
-VisitDelegate::~VisitDelegate() {
+HistoryBackendClient::~HistoryBackendClient() {
 }
 
 }  // namespace history