Move all components/offline_pages/ files into component/offline_pages/core

components/offline_pages/core/offline_page_storage_manager.cc

Index: components/offline_pages/core/offline_page_storage_manager.cc
diff --git a/components/offline_pages/offline_page_storage_manager.cc b/components/offline_pages/core/offline_page_storage_manager.cc
similarity index 96%
rename from components/offline_pages/offline_page_storage_manager.cc
rename to components/offline_pages/core/offline_page_storage_manager.cc
index c26a7e0d2b9a66cfe97f4d356ea284e68907bd00..96b368bf16f2fb6d88b98ebab6b250aed94a9fca 100644
--- a/components/offline_pages/offline_page_storage_manager.cc
+++ b/components/offline_pages/core/offline_page_storage_manager.cc
@@ -2,17 +2,17 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "components/offline_pages/offline_page_storage_manager.h"
+#include "components/offline_pages/core/offline_page_storage_manager.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/time/clock.h"
 #include "base/time/default_clock.h"
-#include "components/offline_pages/client_policy_controller.h"
-#include "components/offline_pages/offline_page_client_policy.h"
-#include "components/offline_pages/offline_page_item.h"
-#include "components/offline_pages/offline_page_model.h"
+#include "components/offline_pages/core/client_policy_controller.h"
+#include "components/offline_pages/core/offline_page_client_policy.h"
+#include "components/offline_pages/core/offline_page_item.h"
+#include "components/offline_pages/core/offline_page_model.h"
 
 using LifetimeType = offline_pages::LifetimePolicy::LifetimeType;