Offline Pages: Add custom tabs namespace to tab helper.

chrome/browser/android/offline_pages/offline_page_utils.cc

Index: chrome/browser/android/offline_pages/offline_page_utils.cc
diff --git a/chrome/browser/android/offline_pages/offline_page_utils.cc b/chrome/browser/android/offline_pages/offline_page_utils.cc
index a607b43420b10a7f1d6a0a39b35f8c3f53adde1a..c12186d9ecc04106772a5a7a640a3bede7542222 100644
--- a/chrome/browser/android/offline_pages/offline_page_utils.cc
+++ b/chrome/browser/android/offline_pages/offline_page_utils.cc
@@ -64,10 +64,8 @@ void OnGetPagesByOnlineURLDone(
   const OfflinePageItem* selected_page = nullptr;
   std::string tab_id_str = base::IntToString(tab_id);
   for (const auto& offline_page : pages) {
-    if ((offline_page.client_id.name_space == kBookmarkNamespace) ||
-        (offline_page.client_id.name_space == kAsyncNamespace) ||
-        (offline_page.client_id.name_space == kLastNNamespace &&
-         offline_page.client_id.id == tab_id_str)) {
+    if (offline_page.client_id.name_space != kLastNNamespace ||
+        offline_page.client_id.id == tab_id_str) {
       if (!selected_page ||
           offline_page.creation_time > selected_page->creation_time) {
         selected_page = &offline_page;