1 files changed, 3 insertions, 0 deletions
diff --git a/chromium/extensions/browser/guest_view/web_view/javascript_dialog_helper.h b/chromium/extensions/browser/guest_view/web_view/javascript_dialog_helper.h
index ae759a14c18..125977727f4 100644
--- a/chromium/extensions/browser/guest_view/web_view/javascript_dialog_helper.h
+++ b/chromium/extensions/browser/guest_view/web_view/javascript_dialog_helper.h
@@ -6,6 +6,7 @@
 #define EXTENSIONS_BROWSER_GUEST_VIEW_WEB_VIEW_JAVASCRIPT_DIALOG_HELPER_H_
 
 #include "base/macros.h"
+#include "base/memory/weak_ptr.h"
 #include "content/public/browser/javascript_dialog_manager.h"
 
 namespace extensions {
@@ -43,6 +44,8 @@ class JavaScriptDialogHelper : public content::JavaScriptDialogManager {
   // Pointer to the webview that is being helped.
   WebViewGuest* const web_view_guest_;
 
+  base::WeakPtrFactory<JavaScriptDialogHelper> weak_factory_{this};
+
   DISALLOW_COPY_AND_ASSIGN(JavaScriptDialogHelper);
 };