Update access info when an offline page is being visited

components/offline_pages/offline_page_model.cc

Index: components/offline_pages/offline_page_model.cc
diff --git a/components/offline_pages/offline_page_model.cc b/components/offline_pages/offline_page_model.cc
index f4d787050f1a2f70574b8710b053f20349f1e03c..9f0992b7034a3b098f1a8d04271c697865e6f059 100644
--- a/components/offline_pages/offline_page_model.cc
+++ b/components/offline_pages/offline_page_model.cc
@@ -112,6 +112,22 @@ void OfflinePageModel::SavePage(const GURL& url,
   pending_archivers_.push_back(archiver.Pass());
 }
 
+void OfflinePageModel::MarkPageAccessed(
+    int64 bookmark_id,
+    const MarkPageAccessedCallback& callback) {
+  DCHECK(is_loaded_);
+  auto iter = offline_pages_.find(bookmark_id);
+  if (iter == offline_pages_.end())
+    return;
+
+  iter->second.last_access_time = base::Time::Now();
+  iter->second.access_count++;
+  store_->AddOrUpdateOfflinePage(
+      iter->second,
+      base::Bind(&OfflinePageModel::OnUpdateOfflinePageDone,
+                 weak_ptr_factory_.GetWeakPtr(), callback));
+}
+
 void OfflinePageModel::DeletePageByBookmarkId(
     int64 bookmark_id,
     const DeletePageCallback& callback) {
@@ -216,7 +232,7 @@ void OfflinePageModel::OnCreateArchiveDone(const GURL& requested_url,
 
   OfflinePageItem offline_page_item(url, bookmark_id, file_path, file_size,
                                     base::Time::Now());
-  store_->AddOfflinePage(
+  store_->AddOrUpdateOfflinePage(
       offline_page_item,
       base::Bind(&OfflinePageModel::OnAddOfflinePageDone,
                  weak_ptr_factory_.GetWeakPtr(), archiver, callback,
@@ -240,6 +256,11 @@ void OfflinePageModel::OnAddOfflinePageDone(OfflinePageArchiver* archiver,
   DeletePendingArchiver(archiver);
 }
 
+void OfflinePageModel::OnUpdateOfflinePageDone(
+    const MarkPageAccessedCallback& callback, bool success) {
+  callback.Run(success);
+}
+
 void OfflinePageModel::BookmarkModelChanged() {
 }