Load live version when reloading an offline page on connected network

chrome/browser/android/offline_pages/offline_page_tab_helper.h

Index: chrome/browser/android/offline_pages/offline_page_tab_helper.h
diff --git a/chrome/browser/android/offline_pages/offline_page_tab_helper.h b/chrome/browser/android/offline_pages/offline_page_tab_helper.h
index 392213d24c74f0eb299302f485009698583bc971..2d72b19d8b9da6225aaef0cf74fc38fac67f7f4f 100644
--- a/chrome/browser/android/offline_pages/offline_page_tab_helper.h
+++ b/chrome/browser/android/offline_pages/offline_page_tab_helper.h
@@ -8,6 +8,7 @@
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
+#include "components/offline_pages/request_header/offline_page_header.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
 #include "url/gurl.h"
@@ -28,10 +29,14 @@ class OfflinePageTabHelper :
  public:
   ~OfflinePageTabHelper() override;
 
-  const OfflinePageItem* offline_page() { return offline_page_.get(); }
   void SetOfflinePage(const OfflinePageItem& offline_page,
+                      const OfflinePageHeader& offline_header,
                       bool is_offline_preview);
 
+  const OfflinePageItem* offline_page() { return offline_page_.get(); }
+
+  const OfflinePageHeader& offline_header() const { return offline_header_; }
+
   // Whether the page is an offline preview.
   bool is_offline_preview() const { return is_offline_preview_; }
 
@@ -53,6 +58,10 @@ class OfflinePageTabHelper :
   // info.
   std::unique_ptr<OfflinePageItem> offline_page_;
 
+  // The offline header that is provided when offline page is loaded for current
+  // tab.
+  OfflinePageHeader offline_header_;
+
   bool reloading_url_on_net_error_ = false;
 
   // Whether the page is an offline preview. Offline page previews are shown