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

components/offline_pages/core/request_header/offline_page_header.h

Index: components/offline_pages/core/request_header/offline_page_header.h
diff --git a/components/offline_pages/request_header/offline_page_header.h b/components/offline_pages/core/request_header/offline_page_header.h
similarity index 89%
rename from components/offline_pages/request_header/offline_page_header.h
rename to components/offline_pages/core/request_header/offline_page_header.h
index 370fe667817795d3d694b8cb2cd28e85b28a02c0..07175c6f0b15efbc94beca8d9fa583d609ef7b62 100644
--- a/components/offline_pages/request_header/offline_page_header.h
+++ b/components/offline_pages/core/request_header/offline_page_header.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef COMPONENTS_OFFLINE_PAGES_REQUEST_HEADER_OFFLINE_PAGE_HEADER_H_
-#define COMPONENTS_OFFLINE_PAGES_REQUEST_HEADER_OFFLINE_PAGE_HEADER_H_
+#ifndef COMPONENTS_OFFLINE_PAGES_CORE_REQUEST_HEADER_OFFLINE_PAGE_HEADER_H_
+#define COMPONENTS_OFFLINE_PAGES_CORE_REQUEST_HEADER_OFFLINE_PAGE_HEADER_H_
 
 #include <string>
 
@@ -41,12 +41,7 @@ extern const char kOfflinePageHeaderIDKey[];
 // loading behaviors.
 struct OfflinePageHeader {
  public:
-  enum class Reason {
-    NONE,
-    NET_ERROR,
-    DOWNLOAD,
-    RELOAD
-  };
+  enum class Reason { NONE, NET_ERROR, DOWNLOAD, RELOAD };
 
   OfflinePageHeader();
 
@@ -77,4 +72,4 @@ struct OfflinePageHeader {
 
 }  // namespace offline_pages
 
-#endif  // COMPONENTS_OFFLINE_PAGES_REQUEST_HEADER_OFFLINE_PAGE_HEADER_H_
+#endif  // COMPONENTS_OFFLINE_PAGES_CORE_REQUEST_HEADER_OFFLINE_PAGE_HEADER_H_