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

components/offline_pages/core/background/mark_attempt_started_task.h

Index: components/offline_pages/core/background/mark_attempt_started_task.h
diff --git a/components/offline_pages/background/mark_attempt_started_task.h b/components/offline_pages/core/background/mark_attempt_started_task.h
similarity index 70%
rename from components/offline_pages/background/mark_attempt_started_task.h
rename to components/offline_pages/core/background/mark_attempt_started_task.h
index b0a93c6f23a28cbc63a537aa739fa91fde27857d..93673a949e5ee88d44d5047cd7693cfd94998dff 100644
--- a/components/offline_pages/background/mark_attempt_started_task.h
+++ b/components/offline_pages/core/background/mark_attempt_started_task.h
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef COMPONENTS_OFFLINE_PAGES_BACKGROUND_MARK_ATTEMPT_STARTED_TASK_H_
-#define COMPONENTS_OFFLINE_PAGES_BACKGROUND_MARK_ATTEMPT_STARTED_TASK_H_
+#ifndef COMPONENTS_OFFLINE_PAGES_CORE_BACKGROUND_MARK_ATTEMPT_STARTED_TASK_H_
+#define COMPONENTS_OFFLINE_PAGES_CORE_BACKGROUND_MARK_ATTEMPT_STARTED_TASK_H_
 
 #include <stdint.h>
 
-#include "components/offline_pages/background/update_request_task.h"
+#include "components/offline_pages/core/background/update_request_task.h"
 #include "components/offline_pages/core/task.h"
 
 namespace offline_pages {
@@ -28,4 +28,4 @@ class MarkAttemptStartedTask : public UpdateRequestTask {
 
 }  // namespace offline_pages
 
-#endif  // COMPONENTS_OFFLINE_PAGES_BACKGROUND_MARK_ATTEMPT_STARTED_TASK_H_
+#endif  // COMPONENTS_OFFLINE_PAGES_CORE_BACKGROUND_MARK_ATTEMPT_STARTED_TASK_H_