Last_n: disable on Svelte devices.

chrome/browser/android/offline_pages/recent_tab_helper.h

Index: chrome/browser/android/offline_pages/recent_tab_helper.h
diff --git a/chrome/browser/android/offline_pages/recent_tab_helper.h b/chrome/browser/android/offline_pages/recent_tab_helper.h
index b5f095f846243f537d86c6dca0ce979844915603..d1bbf5b7bde068da6865b79245da0ca31bf7b01f 100644
--- a/chrome/browser/android/offline_pages/recent_tab_helper.h
+++ b/chrome/browser/android/offline_pages/recent_tab_helper.h
@@ -54,6 +54,7 @@ class RecentTabHelper
     virtual scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner() = 0;
     // There is no expectations that tab_id is always present.
     virtual bool GetTabId(content::WebContents* web_contents, int* tab_id) = 0;
+    virtual bool IsLowEndDevice() = 0;
   };
   void SetDelegate(std::unique_ptr<RecentTabHelper::Delegate> delegate);